AMIR Khan has backed Kell Brook to shock his former foe Terence Crawford and become a two-weight world champion on Saturday night.

The war of words between Khan and Brook stretches back several years with an eagerly-anticipated battle of Britain never coming to fruition.

But the Sheffield star has an unlikely ally in Bolton’s former unified world champion as he looks to do what Khan failed to do in April 2019, and win the highly-fancied American’s WBO World welterweight title.

Khan’s clash with Crawford ended in controversy, stopped after the challenger was caught with a low blow at New York’s Madison Square Garden.

Brook also heads into battle at the MGM Grand's Conference Centre in Las Vegas as the underdog this weekend but has the best wishes of Khan as he takes on someone widely regarded as one of the best pound-for-pound fighters in the sport.

Khan told Seconds Out: “I know he’s got his hands full against Terence Crawford.

“I wish him nothing but the best, I wish Kell all the very best, go out there and put a stop to his reign. And he can do that.

“Kell’s a good fighter and I’ve always respected him.

“Look, as a Brit, we have to support our own fighters and we have to support each other.

“Even though we’ve not looked eye to eye for many years, end of the day, I am gonna be rooting for him.”