Orioles call up their 12th ranked prospect Terrin Vavra. This year Vavra is batting .312 with 2 HR 19rbis a .869 ops in 189 abs. When Vavra appears it will be his major league debut. #orioles #birdland #baseball #mlb #milb #tides #debut #call #callup #bigleagues #terrinvavra