BALTIMORE -- The Orioles optioned right-handed pitcher Tommy Hunter to Triple-A Norfolk on Saturday night.
Hunter is 3-4 with a 6.11 ERA in 2012 after allowing five runs on eight hits and a walk in 1 2/3 innings of relief Saturday against Cleveland.
The Orioles have not announced who will take Hunter's place on the 25-man roster, although designated hitter Jim Thome is expected to join the team on Sunday after being acquired in a trade with the Phillies on Saturday.
With the Orioles using five pitchers Saturday, and the team in the midst of a stretch of 13 games in 13 days, manager Buck Showalter said on Saturday that the team would likely continue carrying 13 pitchers and 12 position players, so another arm would have to be added to replace Hunter.
Miguel Gonzalez, a right-handed starter at Norfolk who allowed two earned runs in 7 1/3 innings during two relief appearances with the O's earlier this year, was in the team's clubhouse on Sunday, although no move had yet been announced indicating he'd been added to the 25-man roster.
Greg Luca is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.