What happened: Arizona Diamondbacks ace Corbin Burnes stated he fully expects to return to the mound by September following a recent setback in his recovery from Tommy John surgery. The delay pushes back his anticipated timeline but keeps the door open for a late-season appearance.

Why it matters: A September return for Burnes could provide a crucial boost to the Diamondbacks' rotation during the final stretch of the regular season and a potential playoff push. His availability down the stretch would significantly impact their postseason calculus.

What to watch: The Diamondbacks will monitor Burnes' throwing program closely over the next two months to determine if a September activation remains a viable option without risking further injury.