Kell Brook's trainer Dominic Ingle believes that Amir Khan will lose his speed in the latter rounds of the pair's fight, which could prove to be his downfall.
The pair clash in the ring on Saturday at the Manchester Arena to bring their long-standing rivalry to a head, in a bout where Brook is established as the favourite.
While Khan may have a resume that features fights against high-calibre opponents, they're bouts he has been unable to win.
On top of that, Ingle believes that Khan's approach previously when getting knocked down could work into Brook's favour, as he highlighted Brook's ability to finish a bout.
"I think if he had boxed Kell any sooner than now and got beaten, I don't think he'd have been such a big attraction in America. I think he started at the top and worked his way down his list, what he thinks," he told the Bet365 Youtube Channel.
"When we hear him talking about boxing at a higher level, yeah he has, but he hasn't necessarily won at a higher level. He's put himself in those fights what he probably couldn't win anyway and there's no disgrace in being knocked out by Canelo, getting beat by Crawford. He can't argue with his resume because he has put himself out there.
"As fighters get older, you tend to find that two things go, the speed and the chin, the punch is the last thing to go. He's had very fast hands, that's what he's prided himself on, he's not going to be the same fighter he was two or three years ago because he's got older.
"He'll have it for a certain amount of time but whether he can sustain that speed throughout all the 12 rounds is another thing. When he was younger he could and he'll be fast for so many rounds in this fight but he won't be able to maintain that speed.
"As for his chin, he's got up from big knockdowns and he's probably gone in with the wrong tactics when he has got chinned and got back up. Instead of getting out the way, he's stood and had a fight and been caught again.
"Once Kell catches somebody, he's a very good finisher. That's how you mark fighters, once you've got someone hurt you've got to be able to finish them. For me, that marks the quality of a fighter, how you finish a fight."
