BALTIMORE, SEPT. 3 -- The Baltimore Orioles didn't disclose the findings of today's medical evaluation of pitcher Brian DuBois's left elbow, but team officials apparently fear their $25,000 gamble may backfire.

That's the fee they paid in claiming DuBois, 23, off waivers from the Detroit Tigers last week. They originally drafted him but traded him to Detroit last year for Keith Moreland.

He missed his last start for Toledo, the Tigers' Class AAA affiliate, with a sore elbow that Orioles' team physician Charles Silberstein examined at Memorial Stadium today.

General Manager Roland Hemond declined to characterize the results of the session.

He did say: "We knew there was some risk involved, and we decided we'd take the risk.". . .

Dave Johnson, the Orioles' winningest pitcher at 11-8, likely will be activated Tuesday. But Manager Frank Robinson said the right-hander probably will be sent to the bullpen initially; Robinson said he was unsure of when Johnson will be returned to the starting rotation. . . .

First baseman Randy Milligan, on the DL with a separated left shoulder, tried to swing a bat again today and was not encouraged by the results. A return to full-time duties still does not seem imminent. . . .

Reliever Gregg Olson will test his sore right elbow Wednesday for the first time since last Wednesday's decision to rest him for a week to 10 days. . . . Rookie first baseman David Segui, out with a bruised knee, probably will return sooner than expected -- although probably not as quickly as his forecast of Tuesday.