Floyd Mayweather retirement: Unbeaten American confirms Manny Pacquiao will be his penultimate fight and he will retire in September

Unbeaten American's final fight will be at the end of the year, he says

Floyd Mayweather, 38, has hinted at retirement (GETTY IMAGES)

Floyd Mayweather has confirmed that the $300m mega-fight against Manny Pacquiao in Las Vegas on 2 May will be the penultimate fight of his career.

The 38-year-old's long-awaited bout against Pacquiao is the fifth of a six fight contract with broadcaster Showtime, and the unbeaten American admits that he no longer enjoys boxing.

Mayweather has been fighting twice a year since signing the deal with Showtime in 2013, always in the months of May and September. He says that his final fight will be this September.

"My last fight is in September," he said after his last open training session before the Pacquiao fight. "I don't enjoy it like I once did. It is at a point where it is business. It is my job.

Mayweather during his final open media workout yesterday (GETTY IMAGES)

Rapper Lil' Kim was a guest at the gym for the final open session (Getty)

“I go to the gym, I train. I know what I have to do. There was a time when it was fun but I am to a point now where I am really over all of that stuff."

A victory over Pacquiao, and then another in his final fight in September would see Mayweather take his unblemished record to 49-0, equalling the record set by Rocky Marciano before he retired in 1955.