By Miguel Rivera

Floyd Mayweather Jr. (46-0, 26KOs) appears confident that Marcos Maidana (35-4, 31KOs) is not capable of fighting any better than he did in their previous fight on May 3rd. Mayweather will defend his WBC/WBA welterweight titles against Maidana in a rematch on September 13th at the MGM Grand in Las Vegas. Their fight bout was won by Mayweather with a twelve round majority decision.

Mayweather gives praise to Maidana's coach, Robert Garcia, but also says the former champion won't be able to make Maidana any better in their return fight.

"Robert Garcia is one of the best coaches in the world. [Maidana] can go with the best coach, but I'm the best fighter. I don't think [Maidana] can fight any better," Mayweather said.

And while Maidana has promised to win the fight by knockout, Mayweather is planning for a knockout victory of his own.

"Of course I want the knockout. What happens is that I fight to win. If the opportunity for a knockout is there, then I'll take it. This is like a game of chess, every move I make is calculated," Mayweather said.