Marlins top prospect Thomas White (left shoulder capsular sprain) facing extended absence

Thomas White, the top prospect in the Miami Marlins organization, will likely miss the remainder of the 2026 season due to a left capsular shoulder sprain, the club announced on Friday.

This deflating news comes three weeks after White's most recent start. He has been on Triple-A Jacksonville's injured list ever since. Marlins president of baseball operations Peter Bendix previously acknowledged the injury, but downplayed its severity in an interview with MLB Network Radio. However, the updated timeline for his return is 12-16 weeks, so even in a best-case scenario, he won't make it back to AAA until September.

Fish On First's No. 1 prospect, While is almost universally regarded as a top-25 overall MLB prospect. Across parts of four minor league seasons, he has posted a 2.81 ERA and 3.06 FIP in 214 ⅔ innings pitched while facing much older competition every step of the way. Between this and a season-opening oblique strain, White made only five starts for the Jumbo Shrimp and wasn't able to complete five innings in any of them.

Thomas White is up to seven strikeouts through 3 IP.#Marlins pic.twitter.com/ZC0JD5MidR

— Fish On First Prospects (@FOFProspects) April 16, 2026

Had White been injury-free this season, the 21-year-old could have plausibly reached the majors by now. Miami's rotation is in complete disarray aside from Sandy Alcantara and Max Meyer. On Friday against the Tampa Bay Rays, Ryan Gusto will start the game with Tyler Phillips scheduled to piggyback him. Gusto will be the 12th different starter used by the Marlins; among MLB teams, only the Houston Astros have used more (13).

White's rehab process will be closely monitored in our FOF injury tracker.

Interested in learning more about the Miami Marlins' top prospects? Check out our comprehensive top prospects list that includes up-to-date stats, articles and videos about every prospect, scouting reports, and more!