Warren, 37, USA Wrestling's Greco-Roman Wrestler of the Year in 2006, will be working with Rousey to help her deal with McMann's elite wrestling skills.
"Looks like I might be helping Ronda in the wrestling regard," Warren said. "I'd be happy to help either one of them; they are great fighters. We can't ask for two better women to get in there and get after it.
"I think it's my wrestling credentials and maybe (knowing McMann). I understand MMA wrestling better than anybody else. It's a whole different thing than wrestling. They are smart, technical fighters and I'm the baddest wrestler there is. If you can get me to come help you, it's gonna be great."
Rousey is an exceptional judoka, but her wrestling could use some work.
Warren, who is riding a three-fight win streak, is one of the best wrestlers in MMA, so it's a nice move on Rousey's part to bring him in as part of her fight camp for UFC 170.
Rousey could use all the help she can get leading into UFC 170, as she has never faced an opponent who has the wrestling credentials of McMann.
Rousey's upcoming opponent the first American woman in history to receive a silver medal in Olympic wrestling. McMann won it at the 2004 Summer Olympics in Athens, Greece, so she's obviously no joke when it comes to wrestling.
The situation is also a positive for Bellator, as it looks good for the promotion to have one of the UFC's champs bringing in one of their stars to help her train.
Rousey could have easily brought in one of the UFC's top wrestlers to help her prepare for UFC 170, but she opted for an athlete from Bellator.