Corbin Burnes

Burnes's elbow injury has been the most impactful single-player absence in Arizona's nightmare injury season — the D-backs have 13 players on the 60-day IL, second-most in baseball. No return timeline has been confirmed; a 2026 comeback appears unlikely.

Teres major strain in his throwing shoulder, suffered while facing live hitters as he rehabbed from Tommy John surgery (performed June 2025). Previously targeting an All-Star break return; that timeline is gone. Best-case scenario is now September. The teres major is a rotator-adjacent muscle critical for pitching velocity and arm mechanics.