Pound-for-pound king Floyd Mayweather Jr has admitted that he wants to remain the talk of the sport after he decides to retire from boxing.

Mayweather is unbeaten in 45 professional encounters, and as he prepares to face Marcos Maidana for the WBC and WBA welterweight titles on Saturday, the American has revealed that an attempt to secure an untouchable legacy is his only motivation as he begins to contemplate retirement.

The 37-year-old told reporters: "I'm contemplating every day getting out the sport now. I'm very, very comfortable. It's not really hard for me to get up when I get to the boxing gym, it's just getting to the gym. I go into my garages and think, do I want to drive you, you, you or you.

"My motivation is fighting for legacy because when you mention boxing, all I want you to mention is Floyd Mayweather. That's what I'm here to do. When my career is over. I don't want you talking about nobody else."

To read about the the main event and undercard in Las Vegas, you can take a look at Sports Mole's preview.