Jon Lester beat the yips with focus and determination - Sports Illustrated

Jon Lester's 200th Career Win

Jon Lester beat the yips with focus and determination - Sports Illustrated

Jon Lester conquered his yips with a successful pickoff at first base

Let's Look At Jon Lester's Top 3 Funniest Throws To First Base To Celebrate His 33rd Birthday

Jon Lester retires after epic MLB career as Red Sox, Cubs ace - Sports Illustrated

COL@CHC: Lester gets the out at first

Jon Lester beat the yips with focus and determination - Sports Illustrated

Jon Lester Can't Throw to First Base. So Why Aren't Opponents Running Wild? - WSJ

The Cubs Way: The Zen of Building the Best Team in Baseball and Breaking the Curse: Verducci, Tom: 9780804190015: : Books

Championship Year in Review: From April to October, in their own words - Giants Extra

John Lester's Yips: Is This Really a Thing?

Championship Year in Review: From April to October, in their own words - Giants Extra