Team orthopedist Dr. John Wilckens will exam Wolf's elbow while the Orioles prepare for their doubleheader against the Blue Jays at Camden Yards. The club is hoping that he will be available by Friday.
"Dr. Wilckens has talked about injecting him, which would put him down for a couple days," said manager Buck Showalter. "He started feeling it in the last inning of his outing."
Wolf allowed three runs and seven hits in five innings Saturday against the Red Sox at Fenway Park. He's 2-0 with a 5.28 ERA in five games, including two starts, with the Orioles.
Update: Wolf will undergo an MRI on Tuesday, with a cortisone injection likely to follow.
There's still a good chance that catcher Matt Wieters' wife, Maria, will have the couple's first child Thursday while the Orioles are off.
"That would be the best scenario, hopefully for them and for us," Showalter said.
Wilson Betemit is here, but he isn't close to playing again because of soreness in his right wrist.
Nick Markakis is still supposed to have the cast on his right hand replaced by a splint while the Orioles are in Tampa for the last three games of the regular season.
Nothing new on Jason Hammel (right knee), who still has some "physical and mental hurdles" to clear, according to Showalter.
The Orioles could send a few players to instructional league to thin out their expanded roster.
"We're going to close ranks here soon," he said.
Outfielder LJ Hoes is one candidate to head back to Sarasota after receiving his award Tuesday as the organization's minor league Player of the Year. Hoes hasn't appeared in a game since the Orioles selected his contract from Triple-A Norfolk.