St. Louis Cardinals starting pitcher Adam Wainwright throws during the first inning of a baseball game against the Arizona Diamondbacks Tuesday, May 20, 2014, in St. Louis. (AP Photo/Scott Kane)
Los Angeles Dodgers' Adrian Gonzalez, right, watches the flight of his 2-run home run as Arizona Diamondbacks' Miguel Montero, left, looks on during the third inning of a baseball game on Sunday, May 18, 2014, in Phoenix. (AP Photo/Ross D. Franklin)
Los Angeles Dodgers' Dan Haren throws a pitch against the Arizona Diamondbacks during the first inning of a baseball game on Sunday, May 18, 2014, in Phoenix. (AP Photo/Ross D. Franklin)
Los Angeles Dodgers' Dan Haren (14) walks around the pitcher's mound with a new baseball after giving up a home run to Arizona Diamondbacks' Cody Ross, left, during the fourth inning of a baseball game on Sunday, May 18, 2014, in Phoenix. (AP Photo/Ross D. Franklin)
Arizona Diamondbacks' Cliff Pennington, left, forces Los Angeles Dodgers' Yasiel Puig (66) out at second base during the eighth inning of a baseball game on Sunday, May 18, 2014, in Phoenix. The Diamondbacks defeated the Dodgers 5-3. (AP Photo/Ross D. Franklin)