Mayweather vs Maidana: Amir Khan vows to be better against Collazo after lengthy layoff

Amir Khan didn't get the May 3 fight he wanted, but he's got a test coming his way on that date, anyway, as he'll face longtime welterweight contender Luis Collazo in the main undercard bout of the Mayweather-Maidana undercard.

Khan (28-3, 19 KO) hasn't fought since a rocky win over Julio Diaz in April 2013, but says that the move up to welterweight will suit him, and that he'll show he's become a better fighter:

"Being out of the ring for so long has helped me work on a lot of different things that you usually wouldn't get the time to focus on when you're in a training camp for a fight.

"It has come at the right time for my move up in weight, and it is going to make a massive difference. You'll see a different fighter - better, more skilled, patient and smarter. I can't wait to get back in there and cause some hurt."

Collazo (35-5, 18 KO) is coming off of a second round knockout of Victor Ortiz on January 30, and both fighters are looking to make a statement on Mayweather's card, with the hope of ultimately landing a fight with Floyd himself.

Do you expect Khan will be any better moving up in weight, or will we see the same Amir Khan, only slightly bigger?