Amir Khan feels that his stablemate Andre Berto has the ability to beat welterweight champion Floyd Mayweather Jr. in Las Vegas on Saturday night.
Khan and Berto train together under coach Virgil Hunter in Oakland and the two-time world champion believes that Mayweather could be in for a shock if he underestimates the capabilities of the Haitian.
In a chat with The Telegraph, Khan said that it would be a mistake if the unbeaten Mayweather thought Berto would be a pushover.
"It would be foolish for Floyd to go in there thinking that Berto is a pushover or an easy fight. I know how motivated Berto is for this fight and have seen all the graft he's done in the gym during previous camps so he's going to bring it on Saturday, no doubt," said Khan.
"Floyd has been around a long time and has the experience so I don't think he's going to underestimate Berto. But you never know, though, after Manny Pacquiao there's a chance he could go in there with less motivation but he says it's his last fight so that will push him.
"If Floyd does overlook Berto then he's in for a big surprise because Berto has the power to hurt him. I think no matter what, Berto is going to leave it all in the ring and will make sure he gives the fans an exciting fight," he said.
Saturday’s fight will be Mayweather's 49th fight, with the five-weight 12-time world champion saying that he will retire after the Berto fight.