Top UFC Heavyweight Shane Carwin, who lost to Brock Lesnar this past weekend at UFC 116, talks to Heavy.com about his loss and the factors that played a roll in him coming out tired in the second round:

"Anyone who questions my cardio should come and train with me. We trained for a twenty-five minute fight but things go wrong. It happens. I basically had an adrenaline dump towards the end of the first (round) and I was unable to recover in between rounds.

"I think the biggest factor of the adrenaline dump was hearing Rosenthal say, `Brock I am going to stop it,' and then not stopping it. He said it at least three different points in the round, and each time I went for the finish and it never came. It sucked the wind and life out of me."