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Giants Prospect Hayden Birdsong to Undergo Tommy John Surgery

The 24-year-old chose surgery after scans revealed UCL plus flexor-tendon damage.

Overview

  • The Giants announced the right-hander will have the operation next week in Dallas with Dr. Keith Meister.
  • Birdsong reported a pop in his elbow during a March 10 Cactus League outing, and imaging showed a UCL sprain with a forearm/flexor-tendon strain that may also be addressed in the procedure.
  • He will miss the entire 2026 season and is expected to be sidelined into early 2027, consistent with typical 12–16 month recovery timelines.
  • The decision followed a second opinion after the club and player weighed surgery against a lengthy rehabilitation plan.
  • Losing Birdsong further thins San Francisco’s pitching depth after recent moves involving Mason Black and Kai-Wei Teng, leaving prospects such as Trevor McDonald, Carson Whisenhunt, Blade Tidwell and Carson Seymour as next-up options.