Cardinals pitcher Jon Lester announces retirement
Boston Red Sox: Top 3 performances of Jon Lester's Boston career
Jon Lester - Wikipedia
Jon Lester Calls It A Career
Former Oakland A's pitcher Jon Lester retires
Former Cubs pitcher Jon Lester, part of team's World Series core, announces his retirement - Chicago Sun-Times
B/R Walkoff - Jon Lester has announced his retirement. 3-time World Series champion 5-time All-Star 16 seasons 200 wins What a career 👏
Jon Lester, a three-time World Champion, announces retirement
Interview with Jon Lester on his FIRST DAY after Retirement