Wei-Yin Chen is likely headed to the disabled list with a strained right oblique muscle. The Orioles' left-hander suffered the injury during the fifth inning of Sunday’s win at Minneapolis.

“He looks like he’s a candidate for the disabled list,” Orioles executive vice president of baseball operations Dan Duquette said on Monday afternoon.

“It looks like he’s going to need some time. He’ll need proper rest before he begins throwing again,” Duquette said.

Chen had an MRI on Monday, and it was to be read by Orioles team doctors.

After Sunday’s game, Chen and manager Buck Showalter held out hope that the injury was only a cramp, but that wasn’t the case.

Chen will probably be placed on the disabled list on Tuesday, and with left-hander Mike Belfiore returned to Norfolk, the team will add two players. Miguel Gonzalez is already on the disabled with a blister on his right thumb, so the team is down two starters.

Jason Hammel, Chris Tillman and Freddy Garcia are currently the only healthy starters.

With two off days this week, Duquette indicated another position player as well as a pitcher could be added on Tuesday and another starting pitcher would be needed for Saturday.

That starter could be either Steve Johnson or Jair Jurrjens.