MINNEAPOLIS -- Closer Glen Perkins is still bothered by soreness in his left side and was unavailable for a second straight night on Saturday against the Orioles.
Perkins, who felt the discomfort in his side while pitching against the Red Sox on Thursday, played catch before Saturday's game to stay loose.
"He doesn't want to sit around and not throw for a few days, but he's not available," Twins manager Ron Gardenhire said.
With Perkins out, Jared Burton will serve as closer. Gardenhire said that the bullpen is in much better shape than it was in Friday's 9-6 loss to Baltimore, as Brian Duensing and Ryan Pressly were also unavailable to pitch because of heavy workloads in previous games. But left-hander Pedro Hernandez, who is slated to start Monday against the White Sox, will be available out of the bullpen, in case he's needed.
"We have a little bit better chance today with some people," Gardenhire said. "Burton would be a third day in a row, but said he feels great. [Anthony] Swarzak is always gonna say he feels good. Duensing is OK. [Josh] Roenicke says he feels good. And Casey [Fien] says he feels fine."