Roberts could land on 15-day DL

BALTIMORE -- Orioles second baseman Brian Roberts was held out of Saturday night's game against Toronto with an abdominal strain, an injury that could land the two-time All-Star on the 15-day disabled list.

Roberts was hurt Friday, when he stole second base in the first inning of a 7-6 loss to the Blue Jays. Roberts stayed in the game long enough to score, but did not return.

"He is better than he was [Friday]," manager Dave Trembley said Saturday. "It is right now day to day. I think I will have a better idea tomorrow of when he will be available to play."

Roberts was held out of batting practice Saturday. He was replaced in the starting lineup by Julio Lugo.

Asked if the injury could force Roberts onto the DL, Trembley said, "Right now, the good news for me is that it's not as severe as we first thought. But I'm not able to tell you when he will play, and I'm not able to tell you if it is a DL or not a DL."

Said Roberts: "They just want to give it one more day and see how it reacts for another night. Certainly, the second day will probably give us a better indication of how long it's going to be. ... Maybe four or five, six days at max, I"ll be back out there playing. But we'll see how it reacts in the next 24 hours."

Roberts missed much of spring training with a herniated disc in his back. Trembley said the back injury was not related to the abdominal strain.

"It's been a rough month and a half so far, but the great part is there's still 158 games left," Roberts said. "I miss a couple now and hopefully play the rest of the way healthy."

In other news, Trembley said embattled closer Michael Gonzalez would not be used until the left-hander can resolve a flaw in his mechanics. Gonzalez is 0-2 with an 18.00 ERA and two blown saves after his first three appearances with Baltimore.

"Our feeling right now is his mechanics are different, his arm angle is a little different," Trembley said. "We're going to have him work with [pitching coach Rick] Kranitz in the bullpen and get him straightened out."

Trembley expected the process to take no longer than a day or two.