Arizona Diamondbacks' Didi Gregorius, left, forces out Chicago Cubs' Starlin Castro (13) during the first inning of a spring training baseball game on Thursday, Feb. 27, 2014, in Mesa, Ariz. (AP Photo/Matt York)
Arizona Diamondbacks' Didi Gregorius waits for a pick-off throw as Chicago Cubs' Starlin Castro dives back to second during the second inning of a spring training baseball game, Thursday, Feb. 27, 2014, in Mesa, Ariz. (AP Photo/Matt York)
Chicago Cubs' Starlin Castro connects for a base hit against the Arizona Diamondbacks during the first inning of a spring training baseball game, Thursday, Feb. 27, 2014, in Mesa, Ariz. (AP Photo/Matt York)
Arizona Diamondbacks catcher Miguel Montero catches a pop-up as teammate Martin Prado watches, against the Chicago Cubs during the third inning of a spring training baseball game, Thursday, Feb. 27, 2014, in Mesa, Ariz. (AP Photo/Matt York)
Arizona Diamondbacks pitcher Bronson Arroyo throws against the Chicago Cubs during the second inning of a spring training baseball game on Thursday, Feb. 27, 2014, in Mesa, Ariz. (AP Photo/Matt York)
Chicago Cubs pitcher Jeff Samardzija throws during the first inning of a spring training baseball game against the Arizona Diamondbacks, Thursday, Feb. 27, 2014, in Mesa, Ariz. (AP Photo/Matt York)
The Arizona Diamondbacks and the Chicago Cubs compete during the third inning of a spring training baseball game on Thursday, Feb. 27, 2014, in Mesa, Ariz. (AP Photo/Matt York)