Single-A Dunedin placed Barriera on its 7-day injured list Aug. 3 due to biceps soreness, Shi Davidi of Sportsnet.ca reports.
Barriera, the No. 23 overall pick in the 2022 First-Year Player Draft, dealt with a shoulder issue in spring training, was shut down again after a May 25 start due to elbow soreness, and now has been shut down again after his velocity was down during a two-inning appearance July 29. Given that he's a hard-throwing 19-year-old with several recent arm injuries, his risk of needing some sort of surgery before advancing to the upper levels of the minors is extreme. All told, he logged a 3.98 ERA, 0.93 WHIP and 25 strikeouts in 20.1 innings across Single-A and the rookie-level Florida Complex League this season.