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Jon Lester announces retirement after 16 seasons, three World
![MLB Rumors: Jon Lester has retired - Lone Star Ball](https://www.si.com/.image/ar_16:9%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cg_faces:center%2Cq_auto:good%2Cw_620/MTk5MzU5MTU0MTg2MzY0MzE4/zac-gallen-pitching-in-the-2023-all-star-game.jpg)
Jon Lester retires after epic MLB career as Red Sox, Cubs ace
![MLB Rumors: Jon Lester has retired - Lone Star Ball](https://img.mlbstatic.com/mlb-images/image/private/t_16x9/t_w1024/mlb/magtrmtyokockrzw1iru)
Future Baseball Hall of Fame ballots preview
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MLB PLAYOFFS: Evan Carter (Elizabethton) goes 1-for-4 in Game 5 of
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Why the St Louis Cardinals traded for lefty Jon Lester
![MLB Rumors: Jon Lester has retired - Lone Star Ball](https://img.mlbstatic.com/mlb-images/image/private/ar_16:9,g_auto,q_auto:good,w_1024,c_fill,f_jpg/mlb/du0urk6nje76mynziwct)
Every 2021 MLB Trade Deadline deal
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MLB free agent tracker: Where every star signs, and what the deal
![MLB Rumors: Jon Lester has retired - Lone Star Ball](https://img.mlbstatic.com/mlb-images/image/private/t_16x9/t_w1024/mlb/dnzzkwiu9tw54ebiwdbs)
Future Baseball Hall of Fame ballots preview
![MLB Rumors: Jon Lester has retired - Lone Star Ball](https://media.bleacherreport.com/image/upload/x_0,y_0,w_1800,h_1196,c_crop/v1670867048/sltsj08doeyl7wl008le.jpg)
The Good, Bad and Ugly of Every $100M Contract Given to an MLB
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Jon Lester retires after epic MLB career as Red Sox, Cubs ace
![MLB Rumors: Jon Lester has retired - Lone Star Ball](https://cdn.vox-cdn.com/thumbor/jOKfVsnpoKeOxmRbjUEy3hjZoWk=/50x182:1051x1018/1200x800/filters:focal(327x287:633x593)/cdn.vox-cdn.com/uploads/chorus_image/image/70382864/lester.0.jpg)
A look back at Jon Lester's career - Beyond the Box Score
![MLB Rumors: Jon Lester has retired - Lone Star Ball](https://images2.minutemediacdn.com/image/upload/c_fill,w_1440,ar_16:9,f_auto,q_auto,g_auto/shape/cover/sport/https-3A-2F-2Fredbirdrants-com-2Fwp-content-2Fuploads-2Fgetty-images-2F2018-2F08-2F1340811464-850x560-0e54c2d78363553de0735baa57851724.jpg)
Former St. Louis Cardinals pitcher Jon Lester decides to retire
![MLB Rumors: Jon Lester has retired - Lone Star Ball](https://www.si.com/.image/ar_16:9%2Cc_fill%2Ccs_srgb%2Cfl_progressive%2Cq_auto:good%2Cw_1200/MTc4MzMxNTM2MDA3ODk4NzI4/jon-lester-chicago-cubs.jpg)
Jon Lester retires after epic MLB career as Red Sox, Cubs ace
![MLB Rumors: Jon Lester has retired - Lone Star Ball](https://cloudfront-us-east-1.images.arcpublishing.com/bostonglobe/WA5MFJKFAJEF4K6WK3XX2VOA5M.jpg)
With Jon Lester's retirement we ask: How do you define a Hall of
![MLB Rumors: Jon Lester has retired - Lone Star Ball](https://img.mlbstatic.com/mlb-images/image/private/t_16x9/t_w1024/mlb/n1jf4496wiei87ke8h5q)
2020 MLB free agents who could re-sign