Orioles designated Emmanuel Rivera for assignment, reinstated Jordan Westburg from the injured list, activated Jose Castillo, and optioned Grant Wolfram to Triple-A Norfolk.
The Orioles released right-hander Matt Bowman after multiple DFAs this season, making him a free agent who may seek a minor-league deal before August 31.
Orioles DFA Vimael Machin, Move Brandon Young To 60-Day IL
Orioles added Emmanuel Rivera and Roansy Contreras to 40-man roster while designating Vimael Machin for assignment and transferring Brandon Young to 60-day IL.
Kyle Bradish will be reinstated from the 60-day injured list to start tomorrow, his first major-league appearance since last June's Tommy John surgery.