Phillies Fire Thomson, Promote Mattingly as Interim Manager

Sources Agree
  • April 29, 2026 at 3:37 PM ET
  • Est. Read: 2 Mins
Phillies Fire Thomson, Promote Mattingly as Interim ManagerAI-generated illustration — does not depict real events

Key Takeaways

The Philadelphia Phillies fired manager Rob Thomson after a dismal 9-19 start to the season and promoted bench coach Don Mattingly as interim manager. Mattingly led the team to a 7-0 victory in his debut game against the San Francisco Giants, with Jesús Luzardo pitching seven shutout innings.

  • Philadelphia Phillies fire manager Rob Thomson after a poor start to the season
  • Don Mattingly named interim manager, leads team to victory in debut game
  • Jesús Luzardo pitches seven shutout innings in Mattingly's first game as manager
  • Alex Cora was considered for the managerial position but declined due to family reasons
  • The Phillies have struggled with underperformance despite a high payroll

The Philadelphia Phillies fired manager Rob Thomson after a dismal 9-19 start to the season and promoted bench coach Don Mattingly as interim manager, according to multiple reports. The move comes amid significant underperformance from a team with a $284.7 million payroll and high expectations.

Mattingly led the Phillies to a 7-0 victory in his debut game against the San Francisco Giants on Tuesday night. Jesús Luzardo, who had struggled in previous starts, pitched seven shutout innings with eight strikeouts and no walks. The team's performance marked a significant turnaround from their recent losing streak.

The decision to fire Thomson was not made lightly. As reported by CBS News and HuffPost, Phillies president of baseball operations Dave Dombrowski initially considered former Red Sox manager Alex Cora for the position. However, Cora declined due to family reasons, leading Dombrowski to promote Mattingly. According to CBS News, Thomson had led the Phillies to four straight postseason appearances and a 2022 NL pennant but struggled this season.

Mattingly's appointment is notable not only for his managerial experience with the Dodgers and Marlins but also because he will be working under his son, Preston Mattingly, who serves as the Phillies' general manager. This marks a unique father-son dynamic in Major League Baseball. Despite initial reservations about managing again, Mattingly expressed confidence in the team's talent and potential to turn the season around.

The Phillies' struggles extend beyond managerial changes. Key players like Alec Bohm and Kyle Schwarber have underperformed, and the rotation has been inconsistent. The team recently released high-priced bust Taijuan Walker, adding to their challenges. Despite these setbacks, Mattingly's leadership could provide a much-needed spark for the Phillies as they aim to climb back into playoff contention.

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