By Carlos Boogs

Amir Khan (31-4, 19KOs) took a big risk when he signed to face WBC middleweight champion Saul 'Canelo' Alvarez (47-1-1, 33KOs) last Saturday night at the T-Mobile Arena in Las Vegas.

Khan, a former junior welterweight world champion who never fought beyond the welterweight limit of 147, moved up to a catch-weight of 155-pounds to face Canelo for his title.

There was no rehydration clause and Canelo is known to pack on a lot of weight before he steps in the ring.

Khan did very well in the fight and most observers had him ahead when the brutal ending came. It took a single massive punch from Canelo, in the sixth round, to knock Khan unconscious.

The British star admits that he was very surprised by the size and strength of Canelo. In the pre-fight negotiations, Khan tried to negotiate a lower catch-weight - but his request was rejected.

Canelo and his team made statements about entering the ring a little light, but Khan says the champion was very large. Canelo reportedly refused to be weighed by HBO, who tried to obtain his weight prior to entering the ring.

"Canelo's a very powerful guy. I'm glad I'm safe, I'm in good health. That shot would definitely have hurt a lot of people. Welterweight would be ideal. I probably walked into the ring at 161, 162-pounds. I tried to eat and put more weight on but for some reason I just couldn't," Khan said.

"Canelo must have been around 180-pounds, he's a big dude. Even when I was hitting him, I could see he wasn't moving or wasn't hurt or anything. I jumped up too high, I didn't expect Canelo to be that big. [But] I'm not going to say they cheated me or anything, because I took the fight. I knew what I was getting into."

In not so many words, Khan admits that he bit off a little more than he could chew by moving up to a much higher weight to face a fighter who is known to rehydrate by over 20-pounds. 

Khan will continue forward and wants to fight again by the end of the year.

"I just stepped up too far. I'm in the peak of my career, everything was going fine until that one big shot. When a guy's a lot bigger and a lot stronger, that's what's going to happen - but I've still got a lot left in me," Khan said.