He’s bobbing and weaving in this clip like he’s Michael J Fox. There have been rumors about health issues for years.(http://www.autoadmit.com/thread.php?thread_id=5285765&forum_id=2#45899271)
it's too bad, he's a good dude(http://www.autoadmit.com/thread.php?thread_id=5285765&forum_id=2#45900927)