There wasn't one point where he was comfortable enough to do any real clowning. He smiled at Ruslan a few times and Ruslan smiled back. No dancing or anything. He didn't look too bad for the first few because he was landing. Ruslan isn't hard to hit. But even though the know-how is there, you could tell the reflexes aren't there anymore. Ruslan is pretty powerful. It was just too much for him. Especially coming off a stoppage loss and on a few days notice. He had his nose bloodied early on too. I think that was bothering him even although I don't remember it bleeding that much, he pawed at it a few times.
Briggs getting his weight in check should help the stamina issues. Briggs will be 3 time heavy weight champion before he reitres and the Klitschkos should be worried.