TORONTO -- The Orioles placed outfielder Steve Pearce on the 15-day disabled list with left wrist tendinitis, retroactive to June 20, and reinstated right-hander Miguel Gonzalez from the paternity list on Friday.
Pearce has been battling pain in both wrists and receiving treatment, manager Buck Showalter said. Showalter is optimistic that Pearce will be ready to come off the DL when eligible, but cautioned that wrist injuries can linger.
"He isn't going to do anything for a few days and see how it resolves," Showalter said. "There are certain things you can play through, but there is a lot of discomfort there."
Pearce is batting .235 with three homers and nine RBIs in 28 games.
Gonzalez, who was away from the club for five days for the birth of his first child, a baby girl, will start Saturday's contest against the Blue Jays. Gonzalez has won his last three starts, with a 2.21 ERA over that stretch.
Roberts, Chen making progress in rehab
TORONTO -- The Orioles received good news on the injury front on Friday, learning that second baseman Brian Roberts and right-hander Wei-Yin Chen are making positive strides in their rehab programs.
Roberts, who has played just three games this season due to a right hamstring injury that required surgery, sprinted and ran the bases at Rogers Centre on Friday. He will continue to work out with the team in Toronto over the weekend, head to Baltimore after the series, and then hopefully begin a rehab assignment.
Manager Buck Showalter said the plan is for Roberts to play at Triple-A Norfolk on Tuesday.
"If everything goes well the next couple days, he will drive to Norfolk after he works at the stadium [on Monday]," Showalter said.
The fact that Roberts will begin playing at the Triple-A level suggests the rehab assignment will be short, but Showalter doesn't intend for the club to push the oft-injured Roberts.
"We will leave that up to Brian," Showalter said.
Chen is scheduled to throw four innings in a simulated game on Monday, then join the Orioles in Baltimore on Tuesday. If all goes well, he will stay with the club until making his first rehab assignment on June 29, Showalter said.
Showalter wasn't exactly sure at what level Chen, who threw three simulated innings on Thursday, would begin his assignment at, but said there was some flexibility because the organization's Class A, Double-A and Triple-A affiliates will all be at home when Chen is ready to appear in a game.
Chen has made just eight starts this season, the last on May 12, due to a left oblique strain. He's 3-3 with a 3.04 ERA over 47 1/3 innings.
• Orioles top prospect Dylan Bundy's throwing progression has increased to 125 feet. Showlater is optimistic Bundy, who has yet to appear in a game this season, will be able to throw off a mound in the near future.
• Right-hander Steve Johnson, who went to the DL on June 6 with a left oblique strain, will start throwing on Saturday for the first time since the injury occurred. He will start off by playing catch and progress from there.
• Prospect Jonathan Schoop, dealing with a stress fracture in his lower back, will take ground balls on Monday. Schoop is batting .268 with three homers and 18 RBIs in 34 games for Triple-A Norfolk.
Chris Toman is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.