#4 Fabricio Werdum
The last time Lesnar fought a submission specialist – Frank Mir back at UFC 200 in 2009 – he smashed him to pieces from the half-guard, trapping Mir’s arm to deliver some hellacious punches that left the former champion a bloody, barely-conscious mess. The win still remains probably the highest point of Lesnar’s MMA career. A one-dimensional submission fighter would always be in trouble with someone as powerful as Brock, but Fabricio Werdum is no normal submission fighter.
Not only is Werdum one of the most decorated Brazilian Jiu-Jitsu black belts to ever set foot inside the Octagon, with tapout wins over legends like Fedor Emelianenko, Cain Velasquez and Alistair Overeem to back that up, but he’s also developed his striking to the point where he can basically stand with anyone in the division. The fact that Werdum has a knockout win over Mark Hunt should tell you how dangerous he is on the feet.
Get the latest updates on One Championship Rankings at Sportskeeda and more
Werdum might’ve slowed down a little since losing the Heavyweight title in 2016, but he’s still arguably in his physical prime more than the 40-year old Lesnar is, and if they fought, it’d largely be a case of how would Brock manage to win? He wouldn’t be capable of outstriking a dangerous Muay Thai artist like Werdum and if he were to put the Brazilian on his back, it’s almost laughable to think that he’d be given the same opportunities for ground-and-pound that Mir handed him. Werdum would likely win this fight – and it’d likely be a finish, too.