Honestly? Sheppard hadn't intended on fighting. That was the last thing that he'd planned on doing. Of course, the Colonel had to go and put herself in the ring and he'd decided 'Why the hell not' before tossing himself into the whole thing too. There had been a lot of good fighters there, though, so it was worth it.
He does a bit of stretching of his own to get the kinks out of his body, hell... it hurt, but it could've been worse. He does, however, give Axel a smile. "I actually noticed that. It's not necessarily a bad thing, and they've got an outlet if they need it. Or so it seems."