Floyd Mayweather critical of 'reckless' Manny Pacquiao

Floyd Mayweather has warned Manny Pacquiao that his 'reckless' style could get him knocked out.

The American boxing welterweight made the claim hours before the two meet for what is being called the 'Fight of the Century' in Las Vegas on Saturday night.

"This is going to be an exciting fight," said Mayweather, who has a perfect 47-0 record with 26 knockouts and is acknowledged as the world's best pound-for-pound boxer.

"Our styles are totally different. He is very, very reckless. Every move I make is calculated. I'm always 5-10 steps ahead of my opponent.

"Pacquiao would be a better fighter if he wasn't so reckless. It's a gift and a curse. He's won a lot of fights by being reckless but being reckless can get you knocked out."