"Since I was 11, I can't straighten my arm, and once in a while, this happens, and I just have to let it rest," said Cruz. "My brother has it and my father has it. But it's good today. I took swings, it's fine."
Manager Don Mattingly assured reporters that Cruz's injury had nothing to do with the need to clear a roster spot for the activation of infielder Mark Ellis.
"This is real," Mattingly insisted, moments before the club optioned catcher Tim Federowicz back to Triple-A Albuquerque to make room for Ellis.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.