Floyd Mayweather Jr said his re-match with Marcos Maidana is a deserved one, ahead of their blockbuster clash in Las Vegas on Saturday.
Mayweather Jr (46-0, 26 knockouts) will go up against Argentina's Maidana (35-4, 31 knockouts) at the MGM Grand, in a re-match of their bout in May - one the American won by a majority points decision.
The unbeaten champion, who is putting his WBA and WBC welterweight titles as well as the WBC junior middleweight title on the line, believes he still has another three fights left in him despite the fact he is 37.
He also commended Maidana for being up for a re-match - only the second time in Mayweather Jr's career he will fight the same opponent twice.
"I know I'm almost 40, but I'm still going strong. I still feel good, and I want to go out there and perform and look well, and give you guys what you want to see," Mayweather Jr said.
"The first fight was very, very interesting and hopefully this fight, this time around, this fight is a lot more exciting.
"He's [Maidana] always in tip-top shape from what I've seen. Do we deserve a re-match? Absolutely.
"I commend him, I commend his team for stepping up to the plate and making this happen again because the fans demanded this fight.
"I'm a true champion and a true champion never backs down.
"So me, I said let's make it happen again. So we'll see you guys Saturday, thanks for the support."
Maidana, meanwhile, will be chasing a knockout victory over Mayweather.
"I'm definitely going to look for the knockout like I always do but I will take the victory any way I can," the 31-year-old said.
He added: "I have 12 more rounds to finish the job, that's what I'm here for. I'm well prepared and ready to show that Mayweather isn't all that everyone thinks he is.
"When I first analysed Mayweather I thought he would be too fast to hit.
"But that wasn't the case during the [first] fight, I was able to hit him and keep him against the ropes and I plan on doing the same thing again."