Manny Pacquiao vs. Shane Mosley

Manny Pacquiao vs. Shane Mosley. The bout was held on May 7, 2011, at MGM Grand, in Las Vegas, Nevada. Pacquiao defeated Mosley by unanimous decision and retained his WBO Welterweight Championship.

Bob Arum promoted the fight, which took place at the MGM Grand in Las Vegas. A Showtime series, Fight Camp 360°, documented Pacquiao's and Mosley's training preparations in the lead up to their bout. Shane Mosley stated that if he lost badly to Pacquiao he may retire. Pacquiao was heavily favored to win, as many fans and critics believed the 39 year old Mosley was past his prime. Pacquiao's promoter Bob Arum stated that should Pacquiao win, it could setup a third fight with Juan Manuel Marquez in November.

In the third round, Pacquiao knocked Mosley down, using a one-two capped with a left straight. Mosley was left dazed by the knock down but managed to stand up. Mosley floored Pacquiao in the tenth round with a push, but referee Kenny Bayless ruled it a knockdown. None of the judges seemed to have bought it judging from the scores. Replays showed that Pacquiao was throwing a punch off balance, slipped and went down with a little help from Mosley's right hand. Bayless apologized to Roach, Pacquiao's coach, after the fight for the mistake. Pacquiao gained one-sided verdicts from all three judges - 119-108, 120-108 and 120-107. Pacquiao reported that he had a cramp in his legs. Freddie Roach said that Pacquiao had problems with cramping before but usually in training sessions and not in the middle of bouts.

Philippines (Lupang Hinirang) - Charice

USA (The Star-Spangled Banner) - Tyrese Gibson

USA (America the Beautiful) - Jamie Foxx

In addition, rapper LL Cool J performed as Mosley entered the arena, while vocalist Jimi Jamison of the rock band Survivor sang Eye of the Tiger as Pacquiao approached the ring.

The referee for the fight was Kenny Bayless, and the judges were Nevadans Duane Ford, Dave Moretti, and Glen Trowbridge. Bayless had previously been referee for fights involving Pacquiao and Mosley before, including the Floyd Mayweather vs. Shane Mosley and Manny Pacquiao vs. Miguel Cotto fights.

These are the payouts to the fighters as reported to the executive director of the Nevada State Athletic Commission Keith Kizer. These are the official purses as per the Nevada bout agreements, It does not include sponsor money or other common forms of revenue paid through other streams. Pacquiao's official purse on the Nevada contract is six million, Top Rank has guaranteed Manny twenty million, because of PPV. According to fight promoter Bob Arum, Manny Pacquiao may earn US$30 million. Mosley's official purse on the Nevada contract is $3.95 million but he is guaranteed five million.

Manny Pacquiao $6,000,000 vs. Shane Mosley ($3,950,000)

Jorge Arce $125,000 vs. Wilfredo Vázquez, Jr. ($165,000)

Alfonso López III $40,000 vs. Kelly Pavlik ($270,000)

Mike Alvarado $50,000 vs. Raymond Narh ($22,000)