WBO welterweight champion Manny Pacquiao of the Philippines waves during a fan rally at the Mandalay Bay Resort in Las Vegas, Nevada April 28, 2015. Pacquiao will face undefeated WBC/WBA welterweight champion Floyd Mayweather Jr. of the U.S. in a welterweight unification bout on May 2, 2015 at the MGM Grand Garden in Las Vegas. REUTERS/Las Vegas Sun/Steve Marcus (LAS VEGAS REVIEW JOURNAL OUT)
