Oakland Athletics' Yoenis Cespedes, left, and Josh Donaldson joke around during practice for a baseball game against the Los Angeles Angels on Friday, July 19, 2013, in Anaheim, Calif.

 

              Oakland Athletics
Oakland Athletics' Yoenis Cespedes, left, and Josh Donaldson joke around during practice for a baseball game against the Los Angeles Angels on Friday, July 19, 2013, in Anaheim, Calif. (AP Photo/Jae C. Hong)