It took Baltimore Orioles Manager Lee Mazzilli a few minutes on Friday before he could go to the field to speak with reporters.

"I had to go through my injury report," Mazzilli joked.

Mazzilli could afford to be jovial after learning that three of his players are working their way back. Most importantly, the Orioles learned that Brian Roberts, who flew to Baltimore prior to Thursday's game against the Boston Red Sox to meet with team orthopedist Charles Silberstein, might be available to pinch-run in this weekend's series against the Detroit Tigers.

An MRI showed no significant damage to the second baseman's sprained right rotator cuff, which had kept him out of the lineup the past three days. Roberts, who rejoined the team on Friday night, will likely return to the lineup on Monday.

"You always expect the worst and something good came out of it," Mazzilli said.

Silberstein also met with pitcher Erik Bedard, who was placed on the disabled list retroactive to May 22. Bedard's sprained knee showed improvement. He is scheduled to visit with doctors again on Friday, likely meaning he will miss at least two more starts.

A busy day with team doctors concluded with Luis Matos's visit with hand specialist Mark Deitch. The outfielder will join the team Saturday and begin baseball activities. He likely will start hitting off a tee and participate in throwing drills.

"Each day will be a chance for evaluation," trainer Richie Bancells said. . . .

Utility player Ramon Nivar joined the team after being recalled from Class AAA Ottawa on Thursday.