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Red Sox Prospect Juan Valera Undergoes Tommy John Surgery

The 19-year-old power arm faces a rehab timeline that could push his next game action into late 2027.

Overview

  • Team officials confirmed the right-hander had UCL reconstruction, commonly called Tommy John surgery, performed by Dr. Jeffrey R. Dugas in Birmingham, Alabama.
  • Valera, ranked No. 4 in Boston’s system by MLB Pipeline, opened 2026 at High-A with 17 strikeouts in 9⅓ innings and a 1.93 ERA.
  • He exited his April 16 start with elbow inflammation after missing more than three months in 2025 with a sore elbow.
  • A standard recovery from this surgery takes about 12 to 18 months, and reporting projects his minor-league return for late 2027 depending on progress.
  • Signed out of the Dominican Republic in 2023 for $45,000, Valera had reached 101.7 mph on his fastball, underscoring why his recovery matters to the Red Sox farm system.