MLB Rumors: Jon Lester, the lefthanded starting pitcher who was part of championship teams for the Boston Red Sox and the Chicago Cubs, has retired, per multiple reports.
Lester, 38, won championships with the Boston Red Sox in 2007 and 2013, while also being a key part of the 2016 Chicago Cubs championship team that broke the Curse of the Billy Goat and brought a title to Wrigley Field for the first time in over a century. Lester also had a brief stint with the Oakland A’s in 2014, and spent the 2021 season pitching for the St.