Just like Mir could do nothing to Lesnar on the ground 
Lesnar is a tit,a soft fucking tit compared to east european/russian fighters
He has fought nobody challenging
lol.
"ok"
then lesnar will beat someone else, and people will say the same thing, then he beats fedor and someone makes up that fedor was sick,
then he beats fedor again and then everyone says he couldn't beat fedor in his prime.
etc etc etc etc etc
pretty fucking worn out.
Almost no one in the world can take lesnar right now. (when hes healthy)
Probably fedor, but dont really know anyone else. Mir is one of the best in the world at the ground and he couldnt do SHIT in the second fight.
And No oen can overpower lesnar in the wrestling game, so he can take down ANYONE in the world at will among the current mma fighters.