LAS VEGAS (AP) — Chris Brown is facing another accusation of beating someone up. Las Vegas police say Brown is suspected of beating an unidentified man who was playing basketball at the Palms Casino Resort on Monday. Police say the man told them he got in an argument with Brown, who punched him. He says another man with Brown also hit him. The man took himself to a hospital to be treated for non-life threatening injuries. Police say they have given Brown the option to sign off on a misdemeanor battery citation or face prosecution, but Brown has not responded. Brown’s representatives could not be reached for comment.