His knees are what worries me. That's what he dominated Quinton Jackson with, I know Chuck's not really a clinch fighter, he'll wait patiently for Silva to swing and try to knock him out with counters, but I see Silva trying to wrap him up in a clinch and knee him to a pulp like he did to Jackson both times.
Then again, Silva has been knocked out in two straight fights, once against Cro-Cop (who's one of the best in the business if you ask me) and once against Dan Henderson who I think is an excellent fighter but we'll see for sure what he can do against Rampage...another fight that I'm excited to see.