Klitschko's bros.
Samual Peter
Mike Tyson
EVander Holyfield


I think either Klitschko brother has the best chance in the UFC. The reason I think that is they like to throw big straight right hand and powerful jabs and we all know that straight right lands quicker than hooks and they are 6'7" with long reach and possible keep a good bjj or wrestling getting in close.

Klitchko’s due to their size/background.

Prime Holyfield would fair well due to hit toughness and dedication, Foreman with his size and power and Tyson with his speed would do well me thinks.

Any boxer with some basic collegiate (like Cintron) would fair well as the whole perpose of collegiate is to defend from the takedown.

Any of them have a chance. As long as they incorporate a ground game into their training.

None of them have a chance, unless they learn to stop a shot or a kick too the dome....

I think Vitali Klistchko used to kickbox at a good level so if he learned to sub/wrestling side he could have some success.

But it is pretty unrealistic, the money side wouldnt be enough for him and the wrestling/sub game cant be learned over night.

A strong fighter with 1 punch ko power like Sam Peter may do well with the right kind of coachin too.

vs Tim Sylvia, they all get the edge

I'm pretty sure both Klitschkos were in kickboxing when they were younger. I think Vitali actually had a couple pro fights so they could do well with using kicks and defending them. The only part they might have trouble with is defending takedowns because of their height. But with the 4 ounce gloves I dont think they will be worried about takedowns because I dont see anyone getting through that first jab.

None of them have a chance, unless they learn to stop a shot or a kick too the dome....
My thoughts exactly. None of them.

So the Klitschkos did a little kickboxing. I would bet Cro Cop KOs them both and Mirko went 1-2 in the UFC...

Tyson aint beating anyone, he is a dinosaur.

I'm pretty sure both Klitschkos were in kickboxing when they were younger. I think Vitali actually had a couple pro fights

Here's some tape of Vitali fighting James Warring at 205. Warring would go on to win a world championship in kickboxing, before eventually becoming IBF cruiserweight champ in '91. Warring also fought in an MMA tourny in '95, winning 2 straight (handing Erik Paulson his first loss) before losing via choke to Renzo Gracie. I'm not sure when or where the fight below took place.

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I don't know why any of them would want to. Everyone on your list has already held the greatest title in the world. Why go to a lesser sport for a joke of a title?