The Orioles activated infielder Ryan Mountcastle from the injured list before Friday night's game against the Athletics, and Baltimore also put outfielders Colton Cowser and Tyler O'Neill on the IL. Cowser went on the seven-day concussion list,

The Orioles’ Ryan Mountcastle returns from the 60-day injured list Friday, but Colton Cowser and Tyler O’Neill both hit the IL.

It’s been a tough season for the Orioles, both in the record books and on the injury front. Baltimore lost two outfielders to the IL on August 8, adding to the woes.