Earlier this week, it was revealed that longtime Red Sox pitching prospect Bryan Mata was taking his talents to Japan. Though terms have not yet been disclosed, it appears as though the 26-year-old right-hander is signing with the Yomiuri Giants of Nippon Professional Baseball.
Originally signed by the Red Sox for $25,000 as an international free agent in January 2016, Mata spent 10 years in the organization without ever reaching the majors. Upon entering the professional ranks, the native Venezuelan quickly emerged as one of Boston’s premier pitching talents and represented the club in the 2018 All-Star Futures Game at just 19. He was ranked by Baseball America as a top-10 prospect in the team’s farm system each year from 2018 to 2023, peaking at No. 4 on three occasions.
Despite showing intriguing flashes at times, Mata’s tenure with the Red Sox was ultimately marred by injuries. After being added to the club’s 40-man roster for Rule 5 Draft protection purposes in November 2020, for instance, the right-hander suffered a slight UCL tear that resulted in him undergoing Tommy John surgery and missing the entire 2021 season. He returned to action in June 2022 and ended the year on a high note, only to suffer additional setbacks in 2023 and 2024.
In 2024 alone, Mata was limited to just 22 2/3 innings across four minor league levels due to a plethora of injuries. After being pulled from multiple rehab assignments and landing on the 60-day injured list, Mata — who was out of options — was designated for assignment and subsequently non-tendered last November. The Red Sox then brought him back on a minor league contract for 2025 that included an invitation to major league spring training.
As part of an impressive camp in Fort Myers, Mata appeared in four Grapefruit League games this past spring and was one of manager Alex Cora’s final roster cuts before Opening Day. The hard-throwing righty ended up spending all of 2025 at Triple-A Worcester, posting a 5.08 ERA with 93 strikeouts to 39 walks over 42 relief appearances (67 1/3 innings) in which opponents batted .268 against him. Though Mata displayed significant velocity on his fastball and the ability to induce whiffs with his secondaries, he never really factored into Boston’s big league bullpen mix.
A minor league free agent at season’s end, Mata drew widespread interest from MLB teams looking to bring him in on a non-roster deal for 2026. The Red Sox were not among them, according to MassLive.com’s Chris Cotillo, who noted that Mata also had offers from other overseas clubs.
Mata, who turns 27 in May, will now look to turn a new leaf in Japan and perhaps re-establish his value there if he plans on returning to the United States in the future. In the meantime, Mata is freshly removed from a strong stint in the Venezuelan Winter League, as he forged a 1.57 ERA with 34 strikeouts to seven walks over nine outings (seven starts) spanning 34 1/3 innings for the Navegantes del Magallanes.
(Picture of Bryan Mata: Maddie Malhotra/Boston Red Sox/Getty Images)