HBO's primer for the Oscar De La Hoya-Manny Pacquiao fight, 24/7, featured a surprise cameo appearance in last week's episode. The Brits' next big hope, Amir Khan, was brought into Freddie Roach's Wild Card Gym to work with Pacquiao. He was part of a crew that was guaranteed $1,000 if they could floor the Pacman. Khan couldn't take down the Filipino legend but his sessions with the world's best pound-for-pound are helping rebuild his confidence.

Khan, just 21, stormed out to an 18-0 start to begin his career but things were derailed a bit in September when he suffered a first round knockout loss to Breidis Prescott during his first pay-per-view appearance.

The British media was all over Khan calling him a phony, Roach thinks that's nonsense:

“People say you can't change his jaw, he's got a glass chin. I'm tired of hearing that kind of (expletive). People get knocked out. Pacquiao was knocked out twice before he won the world title and look at him now. The thing is, when you get knocked out, you either roll over and die or brush yourself off and get up and fight. That's what we're doing.”

Roach had no problem testing Khan's confidence against the world's best:

“Part of the reason why I put him in with Pacquiao was that I wanted to show him that if he can hold his own with a guy like Manny, he can do it with anybody,” Roach said. “I knew he was at that level."

Khan is moving forward with Roach as his trainer but his comeback fight this weekend in East London will be without his new mentor. Roach is working this weekend with Pacquiao against De La Hoya. Khan is already sounding like his swagger mentioning that he could've been a world champ already had he signed on Roach two years ago when they first met.