Silva doesn't deal too well under pressure, we knew that, and now we know he can't always handle a good fighter throwing a series of punches at him. Fedor's beastly fury would make Silva crap his pants. And Fedor had like 100x times more powerful and accurate punches than Weedman.
Any attempt at clowning and doing silly stuff would get punished - brutally.
Fedor by KO in rd 1.