It’s a bit of a blow to the Cubs’ bullpen, as Hughes was off to a solid start working to a 3.18 ERA with nine strikeouts across 5 2/3 innings. That backed up his rookie year in which the 27-year-old pitched to a 3.12 ERA over 57 2/3 innings. The southpaw posts quality strikeout rates, and limits left handed hitters to a .208/.283/.281 batting line, giving up just one home runs in 108 plate appearances over his short career.
The left knee appears to be a bit of a problem for Hughes, who was bothered by it during Spring Training and wound up on the IL on Opening Day as a result. The Cubs will certainly be hoping a second trip to the IL is enough to eliminate the problem.
With Hughes out, the Cubs will turn to Kilian, a right hander who’s only major league experience consists of three starts for the Cubs last season. Those starts didn’t go too well, as Kilian was rocked for 13 earned runs and gave up 12 walks in 11 1/3 innings of work. He’s struggled to a 7.15 ERA in his first three starts at Triple-A this season.