Jameson Taillon
Breakdown
Performance
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June 9, 2026
Expected to miss more than month
Taillon (hamstring) is expected to be sidelined until after the All-Star break, Vinnie Duber of the Chicago Sun-Times reports.
Analysis
Taillon landed on the 15-day injured list with a left hamstring strain Tuesday, and manager Craig Counsell outlined that the right-hander is not expected to be able to return to action until mid-to-late July. Javier Assad will likely replace Taillon in the Cubs' starting rotation in the meantime, while Shota Imanaga is now the last remaining arm from the team's Opening Day rotation that hasn't spent time on the IL this season.
June 9, 2026
Officially placed on IL
The Cubs placed Taillon on the 15-day injured list Tuesday with a left hamstring strain, Vinnie Duber of the Chicago Sun-Times reports.
Analysis
Taillon was able to make it through just one inning during his start Sunday before exiting with a strained hamstring, and he'll now officially have to wait at least two more weeks before making his next appearance on a big-league mound. Ethan Roberts was recalled from Triple-A Iowa in a corresponding move, and Javier Assad, who pitched 6.1 innings following Taillon's removal Sunday, is a likely candidate to move into the Cubs' rotation.
June 8, 2026
Ticketed for IL
Cubs manager Craig Counsell said after Sunday's 2-1 extra-inning loss to the Giants that Taillon (hamstring) will be headed to the 15-day injured list, Marquee Sports Network reports.
Analysis
Taillon was charged with an earned run on two hits and two walks while striking out two batters over one inning before he was forced out of his start Sunday in the top of the second due to a left hamstring strain. Counsell noted that the severity of the injury until Taillon receives imaging Monday, but the Cubs have already determined that the hamstring strain will keep the right-hander out of commission for at least the next two weeks. Javier Assad tossed 6.1 shutout innings in long relief following Taillon's departure Sunday, but Assad could end up sticking in the bullpen if Matthew Boyd (knee) is cleared to return from the 15-day IL by the time Taillon's turn in the rotation comes up next weekend in San Francisco.
June 8, 2026
Dealing with hamstring injury
Taillon suffered a left hamstring strain in the second inning of Sunday's game against the Giants, Bruce Levine of 670TheScore.com reports.
Analysis
Taillon pulled up lame on the final pitch of a six-pitch walk to Matt Chapman in the top of the second inning, and his departure is now understood to be the result of a hamstring injury. The right-hander now appears to be at risk of going on the 15-day injured list, and depending on the severity of the strain, Taillon could be forced to miss extended time. Javier Assad came on in relief of Taillon and could be a potential replacement in the rotation if Taillon is forced to the IL, though Matthew Boyd (knee) could also be ready for activation the next time a fifth starter is needed.
June 8, 2026
Exits early Sunday
Taillon (undisclosed) left Sunday's start against the Giants in the second inning, Jesse Rogers of ESPN.com reports.
Analysis
Taillon surrendered one run on two hits and a walk in the top of the first inning before walking Matt Chapman to open the top of the second. The right-hander immediately signaled to the Cubs' dugout after his final pitch to Chapman, and he was promptly removed from the contest. It's unclear what exactly caused Taillon's early departure, but more information on his status will likely be provided in the near future. In the meantime, Javier Assad replaced him on the mound against San Francisco.