SEATTLE -- The Orioles have made a series of roster moves before tonight's game against the Seattle Mariners at Safeco Field.
Right-hander Zach Clark (UMBC) has been called up from Triple-A Norfolk and catcher Chris Snyder -- acquired in a trade from the Los Angeles Angels on Sunday -- has also been activated.
Lefty Zach Britton, who allowed six runs in six innings Monday night here, has been optioned back to Norfolk.
Catcher Luis Exposito has been designated for assignment, clearing room on the 40-man roster for Snyder. Exposito had been optioned to Norfolk after Monday night's game after not playing in either of the two games since his call-up after Taylor Teagarden's injury.
Also, right-hander Steve Johnson has been activated from the disabled list, where he's been since before the season, and optioned to Norfolk.
Britton had made his 2013 major league debut Monday after going 1-0 with a 1.98 ERA in his first three starts of the year with the Tides.
"They needed another guy, the bullpen has been battered. So unfortunately I threw yesterday so I am the guy to go," Britton said. "I don't consider myself a one-and-done guy, a spot guy. I'd like to get an extended look, especially after having 10 days off. I'd like to hopefully get into my five-day routine and show them what I have been doing down there.