Re: Who presents the toughest challenge to UFC heavyweight champion Junior Dos Santos That is a tough question. Overeem can strike with him, but he's been KO'd before and JDS has some monster fucking hands...but Reem's striking is no joke, either. These are the two best strikers in the HW division. Brock is just a big MF'er. We saw how he reacted to getting tagged by Cain, but his size alone is enough for him to be able to lay on JDS if he can get him down. I think I'm gonna have to go with Lesnar here. If he can get JDS down, he's got a distinct advantae. Cain fought extremely stupid, but there were rumors he has a fucked up knee so maybe that is why he didn't shoot much on JDS?
Re: Who presents the toughest challenge to UFC heavyweight champion Junior Dos Santos Lesnar. JDS can handle Overeem's striking. I don't think he can handle being G&P'd by Lesnar nearly as well.
Re: Who presents the toughest challenge to UFC heavyweight champion Junior Dos Santos I voted Alistair just because I think JDS would rock Lesnar before he could get him down. With Overeem, he has a puncher's chance.
Re: Who presents the toughest challenge to UFC heavyweight champion Junior Dos Santos I think what is gonna be key for JDS is timing an uppercut on Brock's initial bull rush. If he can withstand that initial bull rush each round (if there is more than 1), he should be good. The longer it is on the feet, the greater the chance of JDS retaining his title.