It is hard to believe Jon Lester has been a Chicago Cubs for five seasons already. He played a significant role in the rejuvenation of the franchise in 2015 and was one of the most significant contributors in their 2016 World Series run. Lester is rightfully considered as one of the best free-agent signings in team history.
Between the regular season and postseason, he has pitched in 169 games as a member of the Cubs. His overall numbers are outstanding, 3.54 ERA, 1.24 WHIP, 3.78 FIP, and 8.6 K/9 in the regular season with two All-Star appearances and in the postseason a World Champion and NLCS co-MVP.