Red Sox to promote infield prospect Tyler Miller to Double-A Portland

The Red Sox are promoting corner infield prospect Tyler Miller from High-A Greenville to Double-A Portland, according to Chase Ford of MiLB Central.

Miller, 24, had been with Greenville since the start of the 2023 season. In his first 36 games this year, the left-handed hitter batted .275/.321/.450 with nine doubles, one triple, four home runs, 17 RBIs, 16 runs scored, nine walks, and 28 strikeouts over 140 plate appearances for the Drive. He slashed .313/.365/.552 against right-handed pitching and just .171/.194/.171 against lefties.

Among 78 qualified hitters in the South Atlantic League this season, Miller ranks 23rd in strikeout rate (20 percent) and OPS (.771), 17th in batting average and slugging percentage, 21st in isolated power (.176), 20th in line-drive rate (26 percent), 28th in swinging-strike rate (10.7 percent), and 30th in wRC+ (119), per FanGraphs.

On the other side of the ball, Miller has primarily split his playing time between first and third base in 2024. With Greenville, the 6-foot-1, 193-pounder made 18 starts at first and 16 at the hot corner while committing six errors in 211 total defensive chances. He also has limited experience at all three outfield spots.

Miller was originally selected by the Red Sox in the ninth round of the 2021 amateur draft out of Auburn. The Alabama native signed for $157,800 that July and has since posted a slash line of .252/.313/.400 with 29 homers and 61 RBIs in 268 career games (1,106 plate appearances) across three different minor-league levels. He is not currently viewed by SoxProspects.com as one of the top 60 prospects in Boston’s farm system.

By making the jump to Portland, Miller should provide the Sea Dogs with additional depth at first and third base in the absence of Blaze Jordan, who has been sidelined since May 12 after fracturing his left ring finger on a play at the plate. Besides Jordan, Alex Binelas has been the only Sea Dogs player to log innings at both corner infield positions this year.

Miller, who does not turn 25 until December, is the first position player from Greenville’s 2024 Opening Day roster to receive a promotion to Portland. As noted by SoxProspects.com’s Chris Hatfield, it appears as though the Red Sox opened a spot for Miller on the Sea Dogs’ roster by releasing reliever Cody Scroggins.

(Picture of Tyler Miller: Kelly O’Connor/sittingstill.smugmug.com)

Red Sox to promote top pitching prospect Luis Perales to Double-A Portland

The Red Sox are promoting top pitching prospect Luis Perales from High-A Greenville to Double-A Portland, as was first reported by Andrew Parker of Beyond the Monster.

Perales, 21, is coming off one of the best starts of his young career in his last time out against the Greensboro Grasshoppers on Tuesday. The right-hander allowed only one hit and two walks to go along with a season-high 12 strikeouts over five scoreless innings. He threw 81 pitches (49 strikes) and induced 26 swings-and-misses.

On the 2024 campaign as a whole, Perales has posted a 3.42 ERA and 1.98 FIP with 46 strikeouts to 10 walks across seven starts (26 1/3 innings) for Greenville. He missed some time last month due to side soreness but has impressed since returning to the mound, pitching to a 2.11 ERA (1.97 FIP) with 39 punchouts to eight walks over his last five outings (21 1/3 innings) dating back to April 27.

Among 60 pitchers in the South Atlantic League who came into play Wednesday with at least 25 innings under their belts this season, Perales ranked first in strikeouts per nine innings (15.72), strikeout rate (39.7 percent), and swinging-strike rate (20.7 percent), per FanGraphs. He also led the pack in batting average on balls put in play (.474), which suggests that the defense behind him has been lacking at times.

In addition to the gaudy strikeout numbers, Perales has also given up fewer walks and has induced softer contact. As The Boston Globe’s Alex Speier recently noted, Perales has cut down his walk rate from 12.7 percent last year to 8.6 percent this year while elevating his groundball rate from around 30 percent to 47.3 percent.

Standing at 6-foot-1 and 160 pounds, Perales throws from a high three-quarters arm slot and incorporates a medium-to-high leg kick into his delivery. The righty primarily operates with a four-pitch mix that consists of a high-90s fastball that tops out at 98-99 mph, a low-90s cutter, a low-80s changeup, and a mid-80s slider.

Perales, who does not turn 22 until next April, originally signed with the Red Sox for $75,000 as an international free agent coming out of Venezuela in July 2019. Alongside fellow countryman Wikelman Gonzalez, Perales was added to the club’s 40-man roster over the winter to receive protection from the Rule 5 Draft. He is currently regarded by Baseball America as the No. 9 prospect in Boston’s farm system, which ranks third among pitchers in the organization behind fellow righties Gonzalez and Richard Fitts.

In Portland, Perales is slated to join a starting rotation that — for the time being — includes the likes of Gonzalez, Angel Bastardo, Isaac Coffey, Zach Penrod, Helcris Olivarez, and Hunter Dobbins. If any of these arms were to make the jump to Triple-A Worcester to accommodate the addition of Perales, Penrod would seemingly be a prime candidate.

(Picture of Luis Perales: Maddie Malhotra/Boston Red Sox/Getty Images)

Red Sox promote pitching prospect Brian Van Belle to Triple-A Worcester

The Red Sox are promoting pitching prospect Brian Van Belle from Double-A Portland to Triple-A Worcester, per his agent Gavin Kahn of EnterSports Management.

Van Belle, 26, posted a 3.00 ERA and 4.14 FIP with 69 strikeouts to 25 walks in 14 appearances (13 starts) spanning 81 innings of work for the Sea Dogs this season. The right-hander was used as a bulk reliever in his last time out against the New Hampshire Fisher Cats this past Sunday and allowed five runs over five innings after taking over for the rehabbing Richard Bleier.

So, as a starter to this point in the season, Van Belle has pitched to a 2.61 ERA and 3.98 FIP with 65 strikeouts to 22 walks across 76 innings in which he has held opposing hitters to a .233 batting average against. Coming into play on Thursday, Van Belle ranked fifth among qualified Eastern League pitchers in walks per nine innings (2.78), per FanGraphs. He also ranked fifth in walk rate (7.6 percent), ninth in batting average against (.240), sixth in WHIP (1.20), eighth in line-drive rate (20.1 percent), third in swinging-strike rate (14.7 percent), third in ERA, and 10th in FIP.

A native of Pembroke Pines, Fla., Van Belle originally joined the Red Sox organization as an undrafted free agent in June 2020. Despite being viewed as one of the top college seniors in that summer’s class, the Miami product was passed over in the draft, which was reduced to five rounds on account of the COVID-19 pandemic.

As he recently explained to MassLive.com’s Christopher Smith, though, Van Belle received plenty of interest on the open market in the days following the draft’s completion. The Red Sox separated themselves — in part — by offering future tuition money in addition to a league-mandated $20,000 signing bonus.

So along with the opportunity to play with the Red Sox, I have two years of grad school in my back pocket if I ever want to use it,” Van Belle told Smith last month. “Obviously your baseball career only lasts so long. Just having that backup plan there that they provided was awesome.”

In total, Boston signed 16 undrafted free agents in the wake of the pandemic-shortened 2020 amateur draft. Of the nine who are still in the organization, Van Belle is the first to make it as far as Triple-A and is now just one call-up away from the major-leagues.

Standing at 6-foot-3 and 185 pounds, Van Belle throws from a high three-quarters arm slot and operates with a low-90s fastball that tops out at 94 mph, a mid-80s circle changeup, a high-70s curveball that features 12-to-6 break, and a newly-implemented cutter.

Van Belle, who turns 27 in September, becomes the latest prospect to make the jump from Portland to Worcester this season, joining the likes of other pitchers such as Shane Drohan, Theo Denlinger, Ryan Fernandez, Brendan Nail, and Rio Gomez.

It is also worth mentioning that Van Belle can become eligible for the Rule 5 Draft this winter if he is not added to Boston’s 40-man roster ahead of the protection deadline in November.

(Picture of Brian Van Belle: Kelly O’Connor/sittingstill.smugmug.com)

Red Sox to promote top prospect Ceddanne Rafaela to Triple-A Worcester

The Red Sox are promoting top prospect Ceddanne Rafaela from Double-A Portland to Triple-A Worcester, as was first reported by The Boston Globe’s Alex Speier.

Rafaela was informed of the decision following Portland’s 7-3 loss to the Reading Fightin Phils at Hadlock Field on Sunday afternoon. He did not play in the game.

“It’s very exciting,” Rafaela told Speier. “I’ve been waiting for this chance. I’m happy I get it. I need to go up there and do the same thing I’ve been doing . . . I’ve been working, developing, and I feel very ready right now.”

In 60 games for the Sea Dogs this season, Rafaela batted .294/.332/.441 (107 wRC+) with 18 doubles, six home runs, 37 RBIs, 40 runs scored, an Eastern League-leading 30 stolen bases, 14 walks, and 55 strikeouts across 266 plate appearances. The right-handed hitting 22-year-old initially got his 2023 campaign off to a slow start, but he has turned it around as of late and is slashing a stout .341/.384/.533 (143 wRC+) in his last 34 games (152 plate appearances) dating back to May 13.

On the other side of the ball, Rafaela is considered to be one of the more polished defenders in the Red Sox organization, as evidenced by him being named the club’s Minor League Defensive Player of the Year in 2021 and 2022. This season alone, the versatile 5-foot-9, 165-pounder made 43 starts at center field and seven at shortstop for Portland. He committed eight errors in 163 defensive chances.

While the defensive abilities are undoubtedly there, there are some concerns when it comes to Rafaela’s plate discipline. He struck out in 20.7 percent and walked in only 5.3 percent of his plate appearances with the Sea Dogs this year, though he has worked to improve both of those marks in recent weeks.

A native of Curacao, Rafaela originally signed with the Red Sox for just $10,000 as an international free agent in June 2018. He has since risen through the ranks and was added to Boston’s 40-man roster last November in order to receive protection from the Rule 5 Draft.

Rafaela, who turns 23 in September, is currently regarded by Baseball America as the No. 5 prospect in the Red Sox farm system behind only Marcelo Mayer, Miguel Bleis, Nick Yorke, and Roman Anthony. He is now slated to join a talented WooSox roster that includes other top prospects such as Shane Drohan, Brandon Walter, Enmanuel Valdez, and Wilyer Abreu.

By earning a promotion to Worcester, Rafaela is one step closer to reaching the major-leagues. To get there, he will need to show that he can handle and succeed against advanced competition at the Triple-A level.

(Picture of Ceddanne Rafaela: Maddie Malhotra/Boston Red Sox/Getty Images)

Red Sox to promote pitching prospect Bradley Blalock to High-A Greenville

The Red Sox are promoting pitching prospect Bradley Blalock from Low-A Salem to High-A Greenville, according to MassLive.com’s Christopher Smith.

Blalock, 22, is currently regarded by SoxProspects.com as the No. 43 prospect in Boston’s farm system, which ranks 17th among pitchers in the organization. The right-hander has posted a 1.50 ERA and 2.82 FIP with 22 strikeouts to just four walks in four starts (18 innings) for Salem this season. He has put up those numbers while holding opposing hitters to a .167 batting average against.

In his last time out against the Delmarva Shorebirds at Carilion Clinic Field this past Thursday, Blalock struck out six and walked only one over five frames of one-run ball. He induced 11 swings-and-misses and topped out at 99 mph with his fastball after reaching 97 mph with the offering in his previous three outings.

A native of Georgia, Blalock was originally selected by the Red Sox in the 32nd round of the 2019 amateur draft out of Grayson High School. The club swayed Blalock away from his commitment to Kennesaw State by signing him to an over-slot bonus of $250,000 that July.

Blalock debuted in the rookie-level Gulf Coast League but had his first full season in pro ball derailed by the COVID-19 pandemic. He then pitched to a 4.27 ERA in 23 starts for Salem in 2021 before undergoing Tommy John surgery last March.

During the lengthy 14-month rehab process, Blalock altered his pitch mix by drawing inspiration from Blue Jays ace Kevin Gausman. In addition to a revitalized fastball that has flashed increased velocity post-surgery, the 6-foot-2, 200-pound righty now works with a split-change (Gausman’s pitch), an 84-86 mph gyro slider, and a curveball that features 11-to-5 break.

“It’s definitely cool to be back,” Blalock told Smith last week. “I was talking to somebody about this the other day. It definitely kind of reminded me of that COVID year in 2020. It was just like, ‘Hey, an extra year down and I can get better. I’ve got something to prove.’ I put my head down. Got in there every day with the training staff, in the weight room and the pitching coach in Fort Myers and definitely took advantage of all the resources I had down there.

“Some people go into it and they are like, ‘Oh, dang. This is gonna suck. I don’t know what to expect for the next year,’” he continued. “I feel like the first two days after I knew I was going to have surgery, it was definitely tough. But after that it was like, ‘OK, what’s next? I’m gonna put my head down and grind.’ I was definitely in the best possible spot I could be in to have this with the resources we have.”

Blalock, who does not turn 23 until December, is now set to join a starting rotation in Greenville that includes Wikelman Gonzalez, Angel Bastardo, Juan Daniel Encarnacion, and Dalton Rogers. He will help fill the void left behind by fellow righties Isaac Coffey and Hunter Dobbins, who were both promoted to Double-A Portland on Monday.

(Picture of Bradley Blalock: Kelly O’Connor/sittingstill.smugmug.com)

Red Sox to promote pitching prospects Isaac Coffey, Hunter Dobbins to Double-A Portland

The Red Sox are promoting pitching prospects Isaac Coffey and Hunter Dobbins from High-A Greenville to Double-A Portland, according to MassLive.com’s Christopher Smith.

Coffey, who turns 23 on Wednesday, has posted a 2.83 ERA and 3.92 FIP with a South Atlantic League-leading 83 strikeouts to just 10 walks in 11 starts (60 1/3 innings) for the Drive this season. The right-hander fanned eight over 5 2/3 frames in his last time out against the Greensboro Grasshoppers at Fluor Field this past Thursday.

Among qualified pitchers in the South Atlantic League, Coffey ranks third in strikeouts per nine innings (12.38), second in strikeout rate (34.4 percent), second in walks per nine innings (1.49), second in walk rate (4.1 percent), 10th in batting average against (.222), third in WHIP (1.01), seventh in swinging-strike rate (14.8 percent), 10th in ERA, 13th in FIP, and first in xFIP (2.78), per FanGraphs.

Coffey was selected by the Red Sox in the 10th round of last year’s draft out of Oral Roberts. The California native signed with the club for a mere $7,500 yet is currently regarded by SoxProspects.com as the No. 51 prospect in Boston’s farm system, which ranks 22nd among pitchers in the organization.

Standing at 6-foot-1 and 205 pounds, Coffey throws from a sidearm slot and operates with a four-pitch mix that consists of an 88-90 mph fastball that tops out at 91 mph, a 77-79 mph slider that features 10-to-4 break, and an 83-84 mph changeup that is considered to be a work in progress. He becomes the second member of the Sox’ 2022 draft class to make the jump from Greenville to Portland this season, joining fourth-rounder Chase Meidroth.

Dobbins, meanwhile, has forged a 2.63 ERA and 2.52 FIP with 44 strikeouts to just five walks in seven starts (41 innings) for the Drive this season. The 23-year-old righty also struck out eight across six two-run frames in his last time out against Greensboro this past Friday.

Among the 57 South Atlantic League pitchers who have accrued at least 40 innings to this point in the 2023 campaign, Dobbins ranks first in walks per nine innings (1.10) and walk rate (3.1 percent). He also ranks 20th in strikeout rate (27.3 percent), fourth in WHIP (0.95), and sixth in swinging-strike rate (16.8 percent) after not making his first start of the year until May 7.

Dobbins was selected by the Red Sox in the eighth round of the 2021 amateur draft out of Texas Teach. After undergoing Tommy John surgery earlier that spring, the Lone Star State native signed with Boston for $197,500 and did not make his professional debut until last July. He currently is not rated by SoxProspects.com as one of the top pitching prospects in the system.

Listed at 6-foot-2 and 185 pounds, Dobbins — who turns 24 in August — throws from a high-three-quarters arm slot and works with a four-pitch mix that consists of a 91-94 mph fastball that tops out at 96 mph, a 74-78 mph curveball, an 83-85 mph circle changeup, and a high-80s slider that is rarely used.

Both Coffey and Dobbins figure to join a starting rotation mix in Portland that includes C.J. Liu, Brian Van Belle, Sterling Sharp (who is currently on the injured list), Grant Gambrell, and Wyatt Olds. The Sea Dogs open a six-game series against the Reading Fightin Phils at Hadlock Field on Tuesday night.

(Picture of Isaac Coffey: Gwinn Davis/Greenville Drive)

Red Sox to call up top pitching prospect Chris Murphy, per report

The Red Sox are calling up top pitching prospect Chris Murphy from Triple-A Worcester, according to MassLive.com’s Chris Cotillo. To make room for Murphy on the active roster, right-handed reliever Kaleb Ort was optioned back to Worcester following Monday’s 4-1 loss to the Rays at Fenway Park.

Murphy, who is celebrating his 25th birthday on Monday, will be active and available out of the bullpen for Tuesday’s series opener against the Guardians in Cleveland. Depending on how things play out, the left-hander could get the start in Thursday’s series finale at Progressive Field since the Red Sox have not yet named a starter for that contest.

In 10 outings (9 starts) for the WooSox this season, Murphy has posted a 7.71 ERA and 5.56 FIP with 42 strikeouts to 25 walks in 39 2/3 innings of work. His last appearance came out of the bullpen, as he struck out three and did not issue a walk over three scoreless, one-hit frames in an 8-6 loss to the Louisville Bats on June 1.

Among 87 International League pitchers who have accrued at least 30 innings to this point in the year, Murphy ranks 21st in strikeouts per nine innings (9.53), 77th in walks per nine innings (5.67), 37th in strikeout rate (21.6 percent), 70th in walk rate (12.9 percent), 27th in swinging-strike rate (12.1 percent), 78th in batting average against (.309), 84th in WHIP (1.91), 82nd in ERA, 61st in FIP, and 52nd in xFIP (5.33), per FanGraphs.

A native of California, Murphy was originally selected by the Red Sox in the sixth round of the 2019 amateur draft out of San Diego. He signed with Boston for $200,000 and was added to the club’s 40-man roster last November in order to receive protection from the Rule 5 Draft.

Standing at 6-foot-1 and 175 pounds, Murphy throws from a three-quarters arm slot and operates with a four-pitch mix that consists of a 91-96 mph four-seam fastball, an 84-89 mph slider, an 83-85 mph changeup, and a 73-76 mph curveball.

Despite the struggles he has endured with Worcester this season, Murphy is still regarded by Baseball America as the No. 13 prospect in Boston’s farm system, which ranks fourth among pitchers in the organization. MLB Pipeline, on the other hand, places the southpaw 14th on its list.

Assuming he gets into a game this week, Murphy will become the third player to make their major-league debut with the Red Sox this season, joining second baseman Enmanuel Valdez and outfielder Masataka Yoshida. He is also in line to become the 22nd different non-position player pitcher to be used by the club so far this year.

Ort, meanwhile, was initially recalled from Worcester over the weekend and appeared in each of Boston’s last two games against Tampa Bay. The 31-year-old righty pitched well, striking out three in two perfect innings on Sunday and tossing a scoreless ninth inning on Monday.

On the 2023 campaign as a whole, Ort has forged a 5.87 ERA and 5.31 FIP with 16 strikeouts to seven walks over 14 appearances (15 1/3 innings) for the Red Sox. With the WooSox, he has put up a 2.45 ERA and 5.29 FIP with nine punchouts to six walks in eight outings spanning 7 1/3 innings of relief.

 (Picture of Chris Murphy: Cliff Welch/Icon Sportswire via Getty Images)

Red Sox promote infield prospect Christian Koss to Triple-A Worcester

To accommodate the addition of shortstop Marcelo Mayer to Double-A Portland’s roster, the Red Sox have promoted fellow infield prospect Christian Koss to Triple-A Worcester, per the club’s minor-league transactions log.

Koss, 25, batted .224/.283/.336 with seven doubles, one triple, two home runs, 10 RBIs, 18 runs scored, 11 stolen bases, 10 walks, and 33 strikeouts in 38 games (147 plate appearances) for the Sea Dogs this season.

Considering how much better he did in Portland last year (.739 OPS in 125 games), those numbers may seem underwhelming on a broader scope. Still, Koss has been more productive at the plate as of late. Dating back to May 21, for instance, the right-handed hitter has gone 7-for-23 (.304) with two doubles, one homer, three RBIs, five runs scored, two stolen bases, zero walks, and seven strikeouts over his last seven games. That homer came as part of a two-hit effort in Sunday’s 10-8 loss to the New Hampshire Fisher Cats at Hadlock Field.

On the other side of the ball, Koss has seen the majority of his playing time this season come at shortstop, where he has committed just one error in 281 1/3 innings. The versatile 6-foot-1, 182-pounder has also made two starts at second base, one start at third base, and one start in left field.

“He loves to play the game,” Red Sox manager Alex Cora said of Koss back in March. “He’s made some great plays at shortstop, very athletic, versatile. He’s a good one.”

A former 12th-round draft selection of the Rockies coming out of UC Irvine in 2019, Koss was dealt to the Red Sox for left-hander Yoan Aybar in December 2020. The Riverside, Calif. native is currently regarded by SoxProspects.com as the No. 34 prospect in Boston’s farm system.

With the WooSox, Koss is slated to join a crowded infield mix that already includes Bobby Dalbec, Ryan Fitzgerald, Niko Goodrum, David Hamilton, and Nick Sogard. It is worth mentioning that he can once again become eligible for the Rule 5 Draft this winter if he is not added to the Sox’ 40-man roster by the protection deadline in November.

(Picture of Christian Koss: Kelly O’Connor/sittingstill.smugmug.com)

Red Sox promote relief prospect Theo Denlinger to Triple-A Worcester

As part of a slew of minor-league roster moves, the Red Sox promoted relief prospect Theo Denlinger from Double-A Portland to Triple-A Worcester on Tuesday.

Denlinger, 26, was acquired from the White Sox back in February in exchange for fellow right-hander Franklin German.

To begin his first season as a member of the Red Sox organization, Denlinger posted a 2.29 ERA and 3.10 FIP with 20 strikeouts to seven walks in 14 relief appearances (19 2/3 innings) for the Sea Dogs. Opponents only hit .149 against him while his 6.4 percent line-drive rate and 57.4 percent groundball rate would rank among the best in the Eastern League if he was qualified.

Denlinger, who turns 27 in July, is currently regarded by SoxProspects.com as the No. 48 prospect in Boston’s farm system, which ranks 19th among pitchers in the organization. The Iowa native was originally selected by Chicago in the seventh round of the 2021 amateur draft out of Bradley College (Peoria, Ill.) and signed with the club for just $10,000.

Standing at a burly 6-foot-3 and 240 pounds, Denlinger primarily operates with a two-pitch mix that consists of a 93-96 mph fastball that tops out at 97 mph and a 79-82 mph slider that features long, 11-to-5 break. He has also shown the ability to throw a two-seam fastball and cutter, both of which he first implemented last year.

Denlinger becomes the second member of the White Sox’ 2021 draft class to make the jump to Worcester this season, joining fellow righty reliever Taylor Broadway. Broadway, of course, was acquired from Chicago as the player to be named later in last August’s Reese McGuire/Jake Diekman trade. He currently owns a 5.40 ERA (6.91 FIP) in 15 outings (23 1/3 innings) for the WooSox.

Troye, Bell also promoted

Denlinger was not the only Red Sox relief prospect to receive a promotion on Tuesday. Righties Christopher Troye and Brock Bell were also moved up to Portland and Greenville, respectively.

Troye, 24, forged a 1.96 ERA and 3.60 FIP with 37 strikeouts to nine walks in 14 appearances (18 1/3 innings) for Greenville. The 2021 12th-round draft pick out of UC Santa Barbara has struck out nearly 49 percent of the batters he has faced so far this season.

Bell, 25, produced a 4.58 ERA and 4.64 FIP with 15 strikeouts to five walks in 11 appearances (19 2/3 innings) for Low-A Salem. The 2019 seventh-round selection out of State College of Florida, Manatee–Sarasota is the son of former All-Star infielder Jay Bell.

(Picture of Theo Denlinger: Kelly O’Connor/sittingstill.smugmug.com)

Red Sox to promote top prospect Marcelo Mayer to Double-A Portland

The Red Sox are promoting top prospect Marcelo Mayer from High-A Greenville to Double-A Portland, according to The Boston Globe’s Alex Speier.

Mayer will join the Sea Dogs in New Jersey this week for their upcoming series against the Somerset Patriots, the Double-A affiliate of the Yankees. The 20-year-old shortstop would then be on track to make his Hadlock Field debut on June 6, when the Sea Dogs return home to host the Akron RubberDucks (Guardians affiliate) in the first of a six-game set.

The promotion comes at a time when Mayer has been absolutely raking with Greenville. In 18 games with the Drive this month, the left-handed hitter has slashed a stout .321/.357/.641 with seven doubles, six home runs, 23 RBIs, 14 runs scored, two stolen bases, four walks, and 17 strikeouts over 84 plate appearances.

On the 2023 campaign as a whole, Mayer has batted .290/.366/.524 with 11 doubles, one triple, seven homers, 34 runs driven in, 23 runs scored, five stolen bases, 17 walks, and 34 strikeouts in 35 games (164 plate appearances) for Greenville. He missed some time earlier this month due to some left shoulder soreness, but now appears to be fully healthy.

Among qualified hitters in the South Atlantic League, Mayer currently ranks 15th in batting average, 11th in slugging percentage and OPS (.890), seventh in extra-base hits (19), ninth in total bases (76), and 11th in isolated power (.234), per MiLB.com.

On the other side of the ball, Mayer has unsurprisingly seen all of his playing time on the field this season come at shortstop. The 6-foot-2, 188-pounder served as Greenville’s designated hitter on Sunday, but has otherwise logged 279 innings at short while committing a total of seven errors in 99 defensive opportunities.

A native of California, Mayer was originally selected by the Red Sox with the fourth overall pick in the 2021 amateur draft out of Eastlake High School. He became Boston’s highest-drafted player since 1967 and signed with the club for $6.664 million.

Less than two full years after signing, Mayer now finds himself one step closer to the major-leagues. As noted by Speier, he is the youngest Red Sox draftee to reach Double-A since 2010, when both Anthony Rizzo and Casey Kelly made the jump to Portland.

Mayer, who does not turn 21 until December, is currently regarded by Baseball America as the No. 1 prospect in Boston’s farm system and the No. 12 prospect in the sport. Barring a surprise, he will likely spend the rest of the season with the Sea Dogs, which could — in theory — put him on track to garner big-league consideration at some point in 2024.

For the time being, though, Mayer will join a talented Sea Dogs roster that includes No. 3 prospect Ceddanne Rafaela, No. 7 prospect Nick Yorke, No. 15 prospect Nathan Hickey, No. 18 prospect Matthew Lugo, No. 23 prospect Niko Kavadas, and No. 27 prospect Chase Meidroth.

Mayer, Meidroth, and Hickey were all on Greenville’s Opening Day roster.

(Picture of Marcelo Mayer: Maddie Malhotra/Boston Red Sox/Getty Images)