Miami Marlins' Derek Dietrich, second from right, is greeted by teammate Christian Yelich, left, after hitting a home run off San Francisco Giants starting pitcher Yusmeiro Petit in the third inning of a baseball game Friday, May 16, 2014, in San Francisco. In the background are Marlins' Giancarlo Stanton (27) and Giants catcher Buster Posey, right. (AP Photo/Eric Risberg)