Trainer Freddie Roach believes Lamont Peterson produced the 'fight of his life' while taking Amir Khan's world titles, but he expects the Brit to box clever in the rematch. Peterson pulled off a major upset last December when he took the WBA and IBF light-welterweight belts with a split-decision points win in Washington.

Roach will be plotting Peterson's downfall in the return bout on the 19th of May at the Mandalay Bay in Las Vegas.

Speaking exclusively to Sky Sports, Roach said: "He fought the fight of his life. I watched a lot of tapes on Peterson, he never fought better. I never saw that guy in tapes and I've got to give him credit, he fought a hell of a fight. I was actually happy for him in a way, he's a really nice kid and his story is very compelling."

"I think we laid on the ropes a little too much. When he gets on the ropes he has that passive defence, there's really no counter punching off it. Peterson went to the body, was scoring points. Even when he's not scoring a lot of big points, it still looks really good for him. When the other guy is on the ropes, it looks like you're winning.

"This time we have to be a little bit more clever because he is going to put us on the ropes, because he's a big strong guy. We can't get square, use a little movement so we can get in that right uppercut. I think the uppercut will be very important in this fight."

Tags: Amir Khan , Freddie Roach , Khan vs Peterson , Khan-Peterson , Lamont Peterson