By Mark Lamport-Stokes
The six-times world champion will face fellow American Shane Mosley in an eagerly anticipated welterweight clash in Las Vegas on May 1 when his opponent's WBA crown will not be on the line.
"I've done a lot of things in this sport, things that a lot of fighters weren't able to do in the sport and didn't do in the sport. This fight with Shane Mosley will enhance my legacy."
Renowned for his superb defense, lightning speed and brash talking, Mayweather is unbeaten in a 40-fight professional career that includes 25 knockouts.
While describing Mosley (46-5, 39 knockouts) as "a solid welterweight with great accomplishments," he scoffed at the notion his opponent would be able to dent his unblemished record.
"Like I have always said before ... there is no remedy on how to beat Floyd Mayweather," he said. "Everyone is trying to solve the problem.
"It's like a difficult maths problem that can't no one solve. No one can solve it. The ultimate goal is try to solve the problem. How to beat Floyd Mayweather? I know what I have to go out there and do."
Mosley, a former IBF lightweight champion, is also known for his hand and foot speed but Mayweather bristled when asked to highlight the similarities between the two boxers.
"We are totally different," said the undefeated five-division world champion. "He's a fighter that always worries about landing one big shot, he worries about who is extremely strong.
"And I worry about being smart and winning. We approach fights in two totally different ways. When I shoot my shots, I am looking at my opponent. When Shane punches, a lot of times he closes his eyes."
Mayweather, who prides himself on being one of the best prepared boxers of his era, promised fans a fight to savor at the MGM Grand Garden Arena on May 1.
"I have showed the world that I am always in tip-top shape and I am in the best condition," said the 33-year-old who outclassed Mexican Juan Manuel Marquez in his most recent bout in September after a 21-month retirement.
"I am pretty sure Shane is going to be in good condition. We are going to put on one hell of a show on May 1 come the fight."
(Editing by Greg Stutchbury)