Mental toughness in MMA is doing what needs to be done to get the "W" even when you can't see or have a broken bone. It's sticking to a good game plan or switching game plans if things aren't working. I don't think it necessarily means being able to get hit in the face without quitting for 5 rounds -- although it takes a very tough person to do that. It isn't allowing one self to be baited into the other fighters' style of fight but it could be defined as baiting the other fighter to leave their preferred style. Mentally weak fighters never recover once they are taken into deep waters and taste defeat. So with that said -- some of the toughest are GSP, Rory Mac, Edgar, Stipe and Miesha. Some mentally Weak ones are Rousey, Rumble, Hendricks and Carwin. If I thought about it for another hour I'd probably change half of each list though.
