Scouting Report: Chazz Martinez
Kansas City Royals | RP
Overall
Summary
Justin Martinez, 24-year-old right-handed closer for the Arizona Diamondbacks, underwent Tommy John surgery on his right elbow in July 2025 after suffering an elbow injury on June 9, 2025. As of May 2026, Martinez has completed his first bullpen session since surgery, showing encouraging signs with fastball velocity in the 96-99 mph range (upper-90s to 99 MPH). Manager Torey Lovullo described the session as "electric" and noted Martinez is "in a good spot." The pitcher still requires approximately 15 more bullpen sessions before beginning a minor-league rehab assignment, with a targeted return to the Diamondbacks bullpen in late August 2026. This represents significant progress in his recovery journey, though he remains several months away from game action.
Strengths
- Velocity maintained at 96-99 mph on first post-surgery bullpen session
- Manager describes performance as 'electric'
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