It’s the biggest against the best and it doesn’t get much better or brighter. Boxing’s biggest star, undefeated Floyd “Money” Mayweather, and its newest star, WBC Welterweight World Champion “Vicious” Victor Ortiz, will align their super powers when they meet in “STAR POWER: Mayweather vs. Ortiz.” The mega-fight, which will be contested for Ortiz’s WBC Welterweight World Championship, will take place Saturday, Sept. 17 at MGM Grand in Las Vegas, Nev. and will be produced and distributed live by HBO Pay-Per-View beginning at 9:00 p.m. ET/6:00 p.m. PT.