Frank Mir wants to keep it on the feet against Antonio Rodrigo Nogueira at UFC140 Dec.10

Because the former UFC heavyweight champion tells MMA Interviews he's more at risk of getting submitted by "Minotauro" than he is of getting knocked out when they battle for the second time at UFC 140 on Dec. 10 from the Air Canada Centre in Toronto.
Says Mir:

"Nogueira is still a very tough guy. A lot of people are on two sides of the extreme. They either think the first fight was a fluke or that he should retire. I see someone who is going to be extremely motivated who wants to get revenge, so I don't look to overlook him at all. He's a very legitimate submission specialist, obviously. Even when he's 80-years old he's gonna be dangerous on the ground. On our feet I feel I still have a very big advantage due to my athletic ability and I'm a little more fluid. Being on our feet is a great advantage (for me) and less risk of something bad happening there than on the ground."