Oct. 22 1:42 PM PT2:42 PM MT3:42 PM CT4:42 PM ET20:42 GMT4:42 1:42 PM MST3:42 PM EST0:42 UAE (+1)22:4216:42 ET3:42 PM CT18:42 - Police are investigating a man's allegation that Griffin attacked him in a Las Vegas nightclub during the weekend. Officer Jesse Roybal, a department spokesman, said Wednesday that a battery complaint was filed Sunday stemming from an altercation involving the NBA player. No arrest was made. Roybal says the case remains open. Analysis: Team spokesman Seth Burton says the Clippers are aware of the complaint, but have no immediate comment. The celebrity news website TMZ quoted a man who said Griffin grabbed his neck, took his cellphone and slapped him after he took a photo early Sunday at Tao nightclub at the Venetian resort.