Jameson Taillon faced a harsh reality in Major League Baseball as his performance fell short of expectations. With a 5.92 ERA through 15 starts in 2026 and allowing 25 home runs in 76 innings, he knew changes were needed. His struggles were evident after giving up seven runs on three home runs against the Pittsburgh Pirates, impacting the Chicago Cubs’ playoff hopes.
“The results speak for themselves,” Taillon admitted, acknowledging his need to improve for personal and team reasons. Despite his experience, he understood he was hurting the team.
Major League Baseball is a business, and the Cubs faced a tough decision. They designated Taillon for assignment, calling up Andrew Wantz from Triple-A Iowa. At 34, Taillon’s Cubs career ended with a 4.21 ERA in 96 games.
Cubs manager Craig Counsell reflected on the decision, highlighting Taillon’s impact on the team’s culture. Yet, performance outweighed sentiment, and the Cubs needed to prioritize production.
Taillon struggled throughout the season, with a -1.1 fWAR and a 6.74 FIP, the worst among MLB pitchers meeting the innings threshold. His fastball and cutter were ineffective, and his first-pitch strike percentage saw a significant drop.
The Cubs hoped a recent hamstring injury break would help Taillon adjust, yet his performance remained subpar. Counsell expressed confusion over the lack of improvement, despite efforts to address issues.
With Javier Assad stepping into Taillon’s spot, the Cubs aimed to stabilize their rotation. Assad was lined up for an upcoming game against the New York Yankees. Additionally, Edward Cabrera’s mid-August return offered further pitching support.
Taillon’s absence resonated in the clubhouse. Craig Counsell praised him as a role model for young players, and Dansby Swanson shared his personal bond with Taillon, highlighting his leadership and positive influence on and off the field.
Nico Hoerner emphasized Taillon’s presence beyond the pitch, noting his dedication and support for teammates. Taillon’s humility and willingness to guide others stood out.
Matthew Boyd commended Taillon for maintaining a positive attitude despite challenges. Taillon’s ability to remain consistent and approachable inspired those around him.
Longtime teammate Ian Happ acknowledged the difficulty of losing someone with Taillon’s experience and personal connection. He valued the friendship and support built over the years.
Taillon’s past success hinted at potential future contributions. He had shown adaptability, excelling in 2025, but this season lacked those standout moments. Nonetheless, Taillon’s MLB journey wasn’t over. Recreation of his form would be necessary for further opportunities.
Overall, performance expectations in Major League Baseball are stringent. While Taillon’s Cubs chapter ended, coaches and teammates expressed belief in his ongoing potential.

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