Orioles' Ryan Mountcastle: Returns from concussion

Mountcastle (concussion) was activated off the injured list Tuesday.

Mountcastle's concussion wound up costing him 10 days, but he's ready to go now just two days after resuming baseball activities. He'd been swinging a very hot bat immediately prior to his absence, homering three times while building an eight-game hitting streak. Ryan McKenna was optioned in a corresponding move.