CHICAGO, IL - MAY 17: Starting pitcher A.J. Burnett #34 of the Pittsburgh Pirates delivers the ball against the Chicago Cubs at Wrigley Field on May 17, 2015 in Chicago, Illinois. (Photo by Jonathan Daniel/Getty Images)
CHICAGO, IL - MAY 17: Starting pitcher A.J. Burnett #34 of the Pittsburgh Pirates delivers the ball against the Chicago Cubs at Wrigley Field on May 17, 2015 in Chicago, Illinois. (Photo by Jonathan Daniel/Getty Images)