Khan needs to use the cross-arm guard...

Honestly I've always been somewhat skeptical about Roger Mayweather as a trainer for those Michigan defensive techniques. Yes he knows how to use them (as demonstrated in his career, albeit a bit slowly and thus ineffectively), but he was always more of an offensive fighter and I think his training style is likely to show it. You can't judge anything by Floyd either. He's perfect for Floyd because Floyd is basically a finished product and largely self-trained at this point; Roger is just a great mittman who knows his nephew's style and can adapt to it to suit him. That's true, Roger hasn't produced any other top caliber fighter yet. Ironically Roger Mayweather had a suspect chin as well and used the shoulder roll pretty well to set up his offense, I think Khan could do something similar.

I think with the right trainer he can implement the shoulder roll quite well, by the right trainer I mean either Mayweather Sr. or Roger Mayweather, I think he has the physical assets for it. Honestly I've always been somewhat skeptical about Roger Mayweather as a trainer for those Michigan defensive techniques. Yes he knows how to use them (as demonstrated in his career, albeit a bit slowly and thus ineffectively), but he was always more of an offensive fighter and I think his training style is likely to show it. You can't judge anything by Floyd either. He's perfect for Floyd because Floyd is basically a finished product and largely self-trained at this point; Roger is just a great mittman who knows his nephew's style and can adapt to it to suit him.

You have to be pretty exceptionally slick to effectively use the shoulder roll. If you're not technically perfect you'll get caught with some straight punches. No defense will cover up all deficiencies, and with Khan being a more orthodox fighter I'm not sure it's the best option. Who knows, he might take punches coming from up under better, and keeping the chin tucked while using the cross-arm might be enough. I think with the right trainer he can implement the shoulder roll quite well, by the right trainer I mean either Mayweather Sr. or Roger Mayweather, I think he has the physical assets for it.

Lets not forget about John Ruiz.

That'd just open himself up to uppercuts, I think he's do well with the shoulder roll. You have to be pretty exceptionally slick to effectively use the shoulder roll. If you're not technically perfect you'll get caught with some straight punches. No defense will cover up all deficiencies, and with Khan being a more orthodox fighter I'm not sure it's the best option. Who knows, he might take punches coming from up under better, and keeping the chin tucked while using the cross-arm might be enough.

khan needs to use headgear. that would be my advice to him. don't know if they will let him but it's worth showing up fightnight with his headgear strapped on see if anyone notices.

Limond is a notoriously weak puncher. You are right, after checking him out I realized that. I was just plain wrong on that one. Forgive me... Gomez and Prescott and big punchers.

That'd just open himself up to uppercuts, I think he's do well with the shoulder roll.

We should perhaps recall here the few examples of great fighters who changed their style to step up and win against the best world-class opposition after showing deficiencies (Barrera, Lewis to a degree). Sometimes one's natural style will only go so far, and you have to force some changes. Barrera is a great example, nice one. Like you said though, "Sometimes one's natural style will only go so far, and you have to force some changes", sometimes one guy has another's number, and that may be the case. Khan may go onto be champ, but perhaps he fights Prescott again and gets knocked out again, who knows. Fernando Montiel changed his style ever since that razor tight decision to Gorres and the lose to Gonzalez. He has worked wonders for him, KOing guys left right and centre recently.

You are right, it does seem like the main problem is a weak chin, but Prescott, Gomez and Limond are all very big punchers. Limond is a notoriously weak puncher.

We should perhaps recall here the few examples of great fighters who changed their style to step up and win against the best world-class opposition after showing deficiencies (Barrera, Lewis to a degree). Sometimes one's natural style will only go so far, and you have to force some changes.

This would be fine except to the degree to which his chin showed weakness. The beginning of the end was when he was rocked by a jab, that set up the power shots he took. This points to an exceptionally weak chin, perhaps he just hadn't faced someone who had either the power or the skill to land that power well up to this point. It perhaps calls for a radical revaluation in general. You are right, it does seem like the main problem is a weak chin, but Prescott, Gomez and Limond are all very big punchers.

Who knows, maybe a drastic change like that would do something. I am interested in seeing how he does in his next fight and what changes he makes.

Khan has done fine and always adjusted in every other fight. Even when he has been staggered, or down, he always gets back up and his defense has been fine. When people throw straight punches, they get through sometimes on him when they have been timed nicely, or put into combination, but he has been able to adjust. Prescott was looping the shots, and for the first time he paid for it and could do nothing about it. Just me personally, but I don't think changing his defense to something more crude will help at all with the only man he has had massive trouble with, Breidis Prescott. Khan should tidy his own defense up, instead of changing it. Move the head more, move the feet back, keep the hands up. He should go back to fundamentals and just tidy up the kinks. This would be fine except to the degree to which his chin showed weakness. The beginning of the end was when he was rocked by a jab, that set up the power shots he took. This points to an exceptionally weak chin, perhaps he just hadn't faced someone who had either the power or the skill to land that power well up to this point. It perhaps calls for a radical revaluation in general.

He needs to become a more defensive fighter, that's for sure. George Benton knew how to defend himself against a puncher like Rubin Carter: I don't think a cross arm style would do any good for Khan though, he can't fight from a close distance. If he knew how to, he could've perhaps smothered Prescott's wide shots but it's just not his style.

Did I mention Prescott once? I'm speaking of him continuing his career. But it does minimize damage even from looping punches with the shoulders when you hold it high. Khan has done fine and always adjusted in every other fight. Even when he has been staggered, or down, he always gets back up and his defense has been fine. When people throw straight punches, they get through sometimes on him when they have been timed nicely, or put into combination, but he has been able to adjust. Prescott was looping the shots, and for the first time he paid for it and could do nothing about it. Just me personally, but I don't think changing his defense to something more crude will help at all with the only man he has had massive trouble with, Breidis Prescott. Khan should tidy his own defense up, instead of changing it. Move the head more, move the feet back, keep the hands up. He should go back to fundamentals and just tidy up the kinks.

doesnt matter what guard he uses he looks like he has a poor chin and if he ever goes agaisnt a puncher hes gonna struggle. It's not a miracle solution, but a suggestion as to the best possible strategy for one with a weak chin like him. You can't correct the chin, you have to look to other things.

I think it also had a lot to do with inexperience The way he rushed back up after the first KD, the way he did'nt take time to throw a few jabs; workout his opponent, the complete disregard for an effective defence.. Prescott knew Khans chin was suspect, saw the opening and went for the kill. He is inexperienced, weak chin, against someone taller for the first time...who can hit hard. Looking back, it was a bad fight for Khan. Khan stepped in to early, didn't take a look. Rushed in, got caught, and got KTFO. We always knew it would happen though...

doesnt matter what guard he uses he looks like he has a poor chin and if he ever goes agaisnt a puncher hes gonna struggle.

Prescott was looping around his arms. What is Khan going to block those punches with if he uses something like that? His shoulders? Prescott wasn't throwing straight punches. Did I mention Prescott once? I'm speaking of him continuing his career. But it does minimize damage even from looping punches with the shoulders when you hold it high.