Roy Nelson is good for a round and Big Nog is old and is not gonna run and get on his horse either... These guys are gonna be banging from the start and this is not gonna become a cardio match trust me.. Roy probably connects early on and Nog goes to sleep, possibly retires him after this fight as well.....
Roy will have enough gas to probably last 1 1/2 rounds depending on if they go to ground and really gas out early on. Nog isn't no marathon fighter himself.. He's old and gonna gas in a hurry as well.. If this fight lasts 3 rounds I would be shocked and they will be hugging, breathing hard and holding on..