Gracie Mag has a great interview up with Rodrigo Comprido covering his training with Brock Lesnar:
GRACIEMAG.com: A lot of people think he doesn't know any ground fighting. What's your assessment of his Jiu-Jitsu level and how far do you intend to go with him?
Comprido: The guy's a world class wrestler, US champion. It's impossible that he doesn't know anything about fighting on the ground. He has a really good base, and he positions himself well. The guy is always open to learning new things, or in other words, he's the student every teacher wishes they had. Of course there are things to improve and I hope to help him with the Jiu-Jitsu part. Sooner or later he'll have to face Rodrigo Minotauro, who's the best MMA fighter I've ever seen fight. But he's focused on his next fight and is not thinking about that yet. I'm aware of the fact that he's way above average and that I can help him conquer the UFC belt or that of any other event he wishes to compete in.
GRACIEMAG.com: A lot is said, as well, about his absurd strength and optimal physical conditioning. Is he really that strong, well prepared and so good a wrestler?
Comprido: His strength really is extraordinary, he's by far the strongest guy I've ever coached. But he's so aware of that that during training he uses very little strength (which is more than enough). [laughs] Not just anybody becomes wrestling champion of the United States. I think few in MMA wouldn't get taken down by him in seconds.
It's always worth remembering that a guy's coach is never going to badmouth him, but I think Lesnar has a legitimate chance against Herring. If he is so used to dealing with Comprido's jiu jitsu every day in the gym, Herring's shouldn't be much of a problem, but you never know what will happen in the heat of a fight.
Thanks to Five Ounces of Pain for the picture.