Manny Pacquiao
Manny Pacquiao of the Philippines arrives in the ring with trainer Freddie Roach (C) to face Floyd Mayweather Jr. of the U.S. ahead of their welterweight WBO, WBC and WBA (Super) title fight in Las Vegas, Nevada, on May 2, 2015. Reuters/Steve Marcus

Manny Pacquiao from the Philippines underwent a successful surgery for his right shoulder on Wednesday, due to which he may be sidelined from the ring for four to six months. Dr. Neal ElAttrache from the Kerlan Jobe Orthopaedic clinic in Los Angeles conducted the surgery on the boxing champion and reportedly said he “could not be more pleased" with the results.

“Right now, all I’m focused on is Manny’s health and how the shoulder reacts to surgery,” Pacquiao’s promoter Bob Arum said, according to the Los Angeles Times, adding: “The surgeon is one of the best in the world and it’s a pretty common procedure.”

The surgery was carried out after a controversial revelation by Pacquiao that he sustained the injury three weeks ago during training and that he suffered further damage after the momentous fight with Floyd Mayweather Jr. on Saturday. Mayweather won the fight by unanimous decision.

The disclosure has also led some fans in Las Vegas and Chicago to sue Pacquiao because he deceived the public about the injury and entered the ring as damaged goods, the Associated Press reported.

Pacquiao, who will earn $100 million for the fight, had asked for a pain-killing shot before the fight but was denied the same by Nevada boxing officials because they weren't informed about the injury before. Pacquiao had also reportedly not disclosed the injury on a medical form filled a day before the fight. The move has led officials to consider a disciplinary action against him.

The fight was expected to raise $300 million in pay-per-view while about $74 million worth of tickets were sold, according to the Los Angeles Times.