Brown's trial in the same incident could start as soon as Friday afternoon, after the judge finishes the trial of bodyguard Christopher Hollosy.
Both men are facing an assault charge after a man says they punched him outside a Washington hotel in October. Hollosy's trial began Thursday.
Hollosy told police he punched the man after the man tried to get on Brown's tour bus. The man told police a different story: He said Brown and later Hollosy punched him after he tried to get in a photo Brown was taking with two women.
Court papers say the man's nose was fractured. Brown has denied hitting the man.