Corbin Burnes threw 43 pitches and simulated a fourth inning in a controlled bridge camp game at Tempe Diablo Stadium on Thursday morning. ^[1] Diamondbacks manager Torey Lovullo hinted to reporters, including Alex Weiner of Arizona Sports, that right-hander Corbin Burnes is set to rejoin the club early next week. ^[2] Arizona Diamondbacks starting pitcher Corbin Burnes completed three innings in his final rehab outing on 2026-09-04, indicating readiness to return from the injured list. ^[3] The Arizona Diamondbacks expect Corbin Burnes to rejoin the rotation during the Royals series in September 2026, aiming to strengthen their playoff aspirations. ^[4] The Diamondbacks' bullpen has struggled, with a three-game losing streak exposing vulnerabilities that threaten their NL Wild Card chances as of September 2026. ^[5] Corbin Burnes stated the goal was to reach at least 50 pitches to prepare for a future outing of 60 to 65 pitches. ^[6] Burnes, 31, signed a six-year, $210MM free agent deal with Arizona entering the 2025 season. ^[7] Corbin Burnes has not pitched in the Majors since June of last year due to Tommy John surgery and a teres major strain. ^[8] Ketel Marte was excluded from the lineup for the Phillies series finale as a calculated decision, not a warning sign, following his return from injury. ^[9] The Diamondbacks are considering testing Burnes next week during their three-game series with the Kansas City Royals in Kansas City. ^[10] In 64 1/3 innings with the team, Burnes pitched to a 2.66 ERA and induced ground balls at a 50.3% clip. ^[11]