Jamie Moore told Ringside that Amir Khan is 'virtually unbeatable' when he boxes tactically.
The Bolton-born welterweight has lost his previous two bouts; he was beaten on points at the end of a controversial clash with Lamont Peterson last December, before being knocked out by Danny Garcia in July.
Khan, who captured his maiden world title when he conquered Andreas Kotelnik aged just 22, will get a shot at redemption, however, when he tackles American Carlos Molina on Saturday night.
And ex-European light-middleweight champion Moore says that if the former Olympic silver medallist fights intelligently he can thrive once again - especially now that he is being trained by Virgil Hunter.
"I've always been a big believer that Khan is virtually unbeatable if he sticks to the tactics and boxes defensively," said Moore.
"He often boxes with his heart and, when he gets clipped with half a shot, thinks: 'I'll try and prove people wrong and show you that I've got a chin'. That's his downfall.
"I think he should have left Freddie Roach; Freddie is an unbelievable trainer and a great offensive coach, but Amir needs a defensive coach and someone to tell him: 'You stick to the game-plan'.
Boxing historian Bob Mee added: "Amir's career is on the line every time he fights and the thing that worries me is that he still makes wrong choices in the ring tactically.
"In the Garcia fight he stayed in range too long and when there were good body punches coming in from Garcia he didn't adjust. He was a star at 17 so he is old enough at 25 to (stop making mistakes).
"I don't think (Virgil) Hunter can do a lot with Khan and has probably just tweaked things and tried to make him concentrate round after round and do his job."
Nicky Piper, meanwhile, reckons that there are still some notable flaws in Khan's repertoire, but says he should overcome Molina when the pair lock horns in Los Angeles this weekend.
"Amir likes to go forward - probably a bit too much - but he has proven to have a porous defence and been very susceptible to a big punch," said the former Commonwealth light-heavyweight champion.
"He can't afford to lose three times in a row but while Molina is unbeaten, he is a naturally lighter man and is not a big puncher, so Amir surely can't lose."