MLB Notebook: Bucs, A's riding homer streaks

In 2012, things have certainly turned around for the Bucs and A's. Pittsburgh has already surpassed its homer total from 2011 and has the fifth-best record in the Majors. Meanwhile, the A's are three home runs shy of matching their output from last season, and thanks to an 18-3 record in July, now are tied for the seventh-best winning percentage in the Majors.

Roberts begins rehab assignment with Aberdeen

Orioles second baseman Brian Roberts began a rehab assignment for short-season Class A Aberdeen on Saturday night as he tries to avoid surgery to repair a labral tear in his right hip. The assignment — which is a maximum of 20 days for position players — could be as short as two days, according to manager Buck Showalter.