I would put money on it that Brock has the gas to go 5 rounds with no problem, this guy must have watch TUF 10 second fight and said see big guys have no gas. I mean look Brock had to have good cardio in WWE. He didn't take breaks every 3 minutes when he wrestled. He had to have cardio to last 30 minutes in a ring throwing guys around or doing certain moves. Plus he has good enough cardio to play football, even the scouts said he had freakish strength, speed, and ability's. So we will have to see, if anyone can take him in to 4 or 5 rounds.