By Edward Chaykovsky

British star Amir Khan (31-3, 19KOs) is a huge underdog as he looks forward to his upcoming fight with WBC middleweight champion Saul "Canelo" Alvarez on May 7th from the T-Mobile Arena in Las Vegas.

Khan has been searching for that pay-per-view headline fight for several years. He was unable to get Floyd Mayweather Jr. He was unable to get Manny Pacquiao. Canelo was more than happy to face him, but it comes with a price.

The fight is taking place at a catch-weight of 155-pounds, which is eight pounds above Khan's current fighting weight. Canelo is usually very heavy on fight night and often tips in as a light heavyweight once he enters the ring.

Khan is not discouraged by the weight. He plans to bulk up a bit and come to the fight weighing around 165-pounds, which he says is practically his walking weight when he's not in camp.

"I know the fight is at a catchweight. I have never fought at 155 before but I walk around at probably 160-plus so it will be me fighting at my natural weight. Come fight night I will probably be about 165 as well. I can see Alvarez maybe being even a little heavier than that, maybe going into the ring at 170, but we know what we need to do," Khan told Sky Sports.

"We know we will be up against a tough guy, a bigger guy, a stronger guy in Alvarez and we have to be smart in there and I think this is the first time I am going into a fight being the underdog."

"It's a good time for me to prove myself and show everyone how good Amir Khan is. Plus it's a big fight. I want to give the British fight fans a huge fight and you can't get bigger than this."