Entering the 2017 season, the Chicago Cubs seemingly had an overabundance of relievers capable of setting up closer Wade Davis. Some have enjoyed more success than others, however.
Hector Rondon was the Cubs closer as recently as last season; now, he holds a 4.50 ERA in 54 innings pitched, including a 5.59 ERA in 21 appearances post-All Star break. Unfortunately, Rondon is not the only reliever to struggle in the second half.
Second-half struggles hampering Cubs bullpen
Carl Edwards stepped into the setup man position after posting a 0.00 ERA in 11 appearances in April.