FILE - In this Oct. 13, 2014,, file photo, Los Angeles Clippers' Blake Griffin walks off the court during the second half of an NBA preseason basketball game against the Utah Jazz in Salt Lake City. Las Vegas 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, Oct. 22, 2014, that a battery complaint was filed Sunday stemming from an altercation involving the NBA player. No arrest was made. (AP Photo/Rick Bowmer, File)