Boxer Floyd Mayweather says he will fight just once more after next month’s clash with Manny Pacquiao, because he no longer enjoys the sport. The unbeaten American’s 2 May fight with Pacquiao is the fifth of a six-fight contract with broadcaster Showtime. And Mayweather, 38, says the “fun” has gone out of boxing, which he now regards as “a job”. He added: “I don’t enjoy it like I once did. My last fight is in September.”