PITTSBURGH, PA - SEPTEMBER 16: A.J. Burnett #34 of the Pittsburgh Pirates pitches in the first inning during the game the Chicago Cubs at PNC Park on September 16, 2015 in Pittsburgh, Pennsylvania. (Photo by Justin K. Aller/Getty Images)
PITTSBURGH, PA - SEPTEMBER 16: A.J. Burnett #34 of the Pittsburgh Pirates pitches in the first inning during the game the Chicago Cubs at PNC Park on September 16, 2015 in Pittsburgh, Pennsylvania. (Photo by Justin K. Aller/Getty Images)