Three-time world champion "Pretty Boy" Floyd Mayweather Jr. and WBC world flyweight champion Jorge "Travieso" Arce wish each other good luck as Hall of Fame Top Rank Promoter Bob Arum looks on during a press conference at Universal Studios Camacho's Cantina restaurant for their upcoming title fights on Top Rank's big "Sworn Enemies" championship card presented by Top Rank and Don King Promotions, in association with Caesars Palace and Wynn Las Vegas at the Thomas & Mack Center in Las Vegas, Saturday,April 8, live on HBO Pay Per View. Mayweather headlines the show against Zab "Super" Judah and Arce faces two-time world champion Rosendo Alvarez. Click image for gallery. Photo Credit: Chris Farina - Top Rank