Among the Orioles attending the annual children's holiday party at Dave & Buster's at the Arundel Mills Mall on Tuesday was second baseman Brian Roberts, who is attempting to come back from a concussion that limited him to just 39 games in 2011.

"I'm just going day by day trying to do a little more," said Roberts, who first suffered the concussion in September 2010, when he tapped himself on the helmet with a bat after an at-bat. "Just taking it slow and trying to get better every day. That's about all I can tell you, really."