Chicago Cubs pitcher Justin Steele will undergo season-ending surgery on his left elbow, manager Craig Counsell told reporters Sunday.
Steele, 29, was placed on the injured list last week after feeling discomfort in his elbow following his last start. He threw seven shutout innings against the Texas Rangers on Monday but still felt pain after arriving at the stadium the next day for treatment.
He was 3-1 with a 4.76 ERA in four starts before going down.
Steele has had a history of minor elbow problems over the last couple of seasons, spending time on the injured list in each of them, including late last year before returning for two September outings.