Burnes targets late August return as Diamondbacks rotation faces injury crisis

Arizona Diamondbacks right-hander Corbin Burnes is progressing in his recovery from Tommy John surgery and has set a target to return to the Major League rotation before the end of August. The former Cy Young Award winner, who underwent the procedure in June 2025, is currently throwing off a mound and has expressed confidence in the timeline to reporters.

Burnes signed a six-year, $210 million contract with the Diamondbacks following a standout 2024 season with the Baltimore Orioles, where he recorded a 2.92 ERA and allowed 7.6 hits per nine innings across 32 starts. The four-time All-Star made only 11 starts for Arizona before the injury sidelined him for the remainder of the previous season and all of 2026.

While Burnes’ return would provide a significant boost to a club viewed as a potential postseason contender, the projected timeline has drawn scrutiny from experts. ESPN’s Alden Gonzalez reported that analysts consider the end-of-August target "overly optimistic," noting that standard recovery protocols typically require two to three minor league rehabilitation starts before a player is cleared to face Major League hitters.

The urgency of Burnes’ return is underscored by a severe depletion in the Diamondbacks’ pitching staff. The rotation is currently missing key contributors Zac Gallen, Michael Soroka, and Ryne Nelson. Although Burnes may not be at full strength upon his return, adding a starter of his calibre to the mix could make Arizona a formidable opponent in the playoffs.

Gonzalez noted that Burnes is trending toward a rehab assignment, which serves as a positive indicator for the team’s strategic outlook. However, uncertainty remains regarding whether the pitcher can complete the necessary minor league starts within the compressed timeframe while managing the physical demands of a high-stakes postseason push.