I came across this on max boxing. There was a video embedded with it that appeared to have been taken down, perhaps team Khan were not happy with how it sounded. Anyway his comments are of interest:
"No disrespect to Freddie (Roach), he's a great trainer, but with Virgil (Hunter), he'll make you just do so many drills. He (Virgil) trains you the way you're going to fight," says Bolton's Amir Khan in this new video interview.
Plus Khan adds regarding his sparring sessions with Manny Pacquiao: I remember the wars I used to have in the Wild Card gym...I thought it was good to do that. With me and Pacquiao, it was war. Most of the time, I used to get the better of him. I've got videos of that (to prove it)...he knows deep down what happened in sparring."