The Orioles' High-A affiliate in Frederick activated right-hander Hayden Nierman from the full-season injured list on Monday, Nov. 2.
Nierman, 26, is a native of Scottsdale, Arizona. He has not yet made his major league debut.
Also on Nov. 2, Double-A Chesapeake activated right-hander Carlos Tavera from the full-season injured list, Double-A Chesapeake activated right-hander Edgar Portes from the full-season injured list and Double-A Chesapeake activated right-hander Blake Money from the full-season injured list.
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