This season, the revamped Chicago Cubs bullpen has been a huge key to their success. To this point, their 3.21 ERA is the third-lowest in all of baseball.
Despite that success, they have been relied on heavily for much of the season, maybe too much. So far this season, Cubs relievers have pitched 392 2/3 innings, which is the seventh-most of any bullpen.
Relievers Steve Cishek, Pedro Strop and Justin Wilson have all made 40 plus appearances and pitched 40 plus innings. Based on how much they have been used, they are all well on their way to surpassing their career-highs in both categories.