Floyd Mayweather will fight Manny Pacquiao in Las Vegas on 2 May in what promises to be the richest bout in the history of boxing.
American Mayweather, 37, and Filipino Pacquiao, 36, are considered to be the best two fighters of their generation.
Mayweather’s WBC and WBA welterweight titles and Pacquiao’s WBO belt will be on the line at the MGM Grand.
Mayweather is unbeaten in 47 professional fights; Pacquiao has 57 wins and five losses from 64 contests.
The fight is expected to generate as much as £162m ($250m). The most lucrative fight in history is thought to be Mayweather’s bout against Saul Alvarez in 2013, which made an estimated £97m.
Mayweather-Pacquiao is also expected to break the record for pay-per-view buys in the United States. The current record of 2.4 million was set when Mayweather fought fellow American Oscar de la Hoya in 2007.
Mayweather wrote on his webpage: “What the world has been waiting for has arrived. Mayweather vs Pacquiao on May 2, 2015 is a done deal.
“This will be the biggest event in the history of the sport. Boxing fans and sports fans around the world will witness greatness on May 2.”
Mayweather, whose unbeaten record stretches back to 1996, has won his past five bouts on points, most recently a rematch with Marcos Maidana in September.
British welterweight Amir Khan, who wants to fights Mayweather and also held talks with Pacquiao in January, said before the bout was announced that it is “not going to be what people expect”.
He told the Daily Mail on Thursday: “Four years ago it would have been a massive fight because both of them were at their peak. It might have gone past that now.
“It will be a good fight for a couple of rounds. I think it will go the distance but that Mayweather will win by unanimous decision.”