A touted fight between Manny Pacquiao and Floyd Mayweather Junior is one of the most highly anticipated in boxing history, and now Dubai has been rumored to be a potential venue for the bout this summer.

A May 5 date has been touted, and remains a possibility, but it is more likely that it will take place later for commercial reasons. A later date could see the bout take place in Dallas or Dubai, and would potentially become the richest fight in boxing history; beating the $140 million purse created when Mayweather fought Oscar de la Hoya five years ago.

(Photo: Reuters/Marsh Starks)Floyd Mayweather Jr. of the U.S. stands in the ring before fighting WBC welterweight champion Victor Ortiz, also of the U.S., at the MGM Grand Garden Arena in Las Vegas, Nevada, September 17, 2011.

Roach has said, according to AFP: “Dallas would be the best place to put on that fight in the U.S. because you could get 100,000 people in Cowboys Stadium, but Dubai is the best money-wise.”

On Mayweather’s twitter account he has written: “I'm ready to put my belt up. What about you Manny Pacquiao? Let's make history... Step up Punk.”

Pacquiao has responded to the challenge in an interview with GMA-7 TV in the Philippines, saying: "If he agrees to a 50-50 [share], then the fight will push through."

Most boxing fans would also agree a 50-50 share of the purse shouldn’t be too much of a sticking point, given what both boxers are bringing to the fight, however, whether Mayweather’s camp will agree is another matter.

The venue also remains a disputed fact, with Mayweather demanding the fight to take place at the MGM Grand. However, Pacquiao’s promoter Bob Arum has said that venue would be far too small.