Rusin is needed as the Cubs bullpen is taxed after a 16-inning game on Tuesday, during which catcher John Baker got the win over the Colorado Rockies after throwing an inning in relief. Seven relievers combined to pitch 12 scoreless innings in the tilt, leaving the Cubs down several bullpen arms for Wednesday night’s game.
Parker threw two innings on Tuesday night in the victory. He’s been up and down with the Cubs several times already this season.
Rusin has appeared in two games for the Cubs this season and is 7-11 with a 3.76 ERA for Iowa.