Cubs Designate Jameson Taillon for Assignment Following Seven-Run Outing

The Chicago Cubs moved on from Jameson Taillon on Monday after the right-hander allowed seven runs and three homers in four innings against Pittsburgh.

The Chicago Cubs officially designated Jameson Taillon for assignment at 5:30 PM ET on Monday, July 27, 2026. This transaction follows a disastrous Sunday afternoon start at PNC Park where the 34-year-old right-hander surrendered seven earned runs to the Pittsburgh Pirates in just four innings of work. During that final appearance in a Cubs uniform, the veteran gave up three home runs, a performance that solidified his position as the league leader in long balls allowed for the current campaign despite a stint on the injured list earlier this summer.

Key details

Taillon departs the active roster carrying a 2-6 record and a bloated 5.92 ERA across 76 innings pitched. His statistical decline is most evident in the .329 batting average opposing hitters maintained against his four-seam fastball, a metric that spiked by more than 100 points relative to his 2025 production. Over the course of his 2026 starts, the righty yielded 25 home runs, struggling to locate his primary offerings after returning from a mid-season hamstring strain that sidelined him for several weeks.

To fill the vacancy on the 26-man roster, the Cubs promoted 30-year-old right-hander Andrew Wantz from Triple-A Iowa. Wantz arrives in the major leagues having authored a 2-1 record and a 4.32 ERA in the minor leagues this year. His professional journey in 2026 includes a brief tenure with the Tampa Bay Rays, and he previously logged significant innings for the Los Angeles Angels before the Chicago front office acquired his services to bolster their pitching depth.

This roster move marks the end of Taillon’s tenure during the final season of a four-year, $68 million contract signed in 2023. While his 2026 numbers faltered, the veteran was a cornerstone of the rotation during the middle years of that deal, consistently posting ERAs in the mid-3.00s. A high-water mark of his Chicago career occurred in the postseason, specifically during Game 3 of the wild-card round against the San Diego Padres, where he threw four scoreless innings to help secure a 1-0 victory.

Latest developments

Spanning a decade-long career that commenced with the Pirates in 2016, Taillon maintains a lifetime 3.99 ERA. However, the recent inability to keep the ball inside the park forced the Cubs' management to pivot toward younger options. The disparity between his previous reliability and this year's 5.92 ERA became untenable for a club attempting to stabilize its pitching staff in the late stages of July.

Statistically, the 76 innings logged by Taillon this season were among the least efficient of his career. Beyond the high ERA, his WHIP inflated as contact rates against his breaking pitches also rose. The decision to move on from the ten-year veteran reflects a shift in strategy as the organization integrates Wantz, who brings a fresh arm to a bullpen and rotation mix that has been taxed by short starts.

Chicago's front office finalized the paperwork on Monday evening, effectively ending the pitcher's stint with the team just 24 hours after the Pirates' hitters exploited his elevated sinker and flat slider. The move signals a clear intent to prioritize current performance over past veteran status as the schedule moves into the final two months of play. Wantz is expected to be available for the upcoming series, providing the versatility the Cubs lacked during Taillon's recent struggles on the mound.