I'd have to watch it again (not doubting you, just haven't seen it other than in real time). And you're probably right about Yaya getting pelters if he did something similar, but then he does carry greater defensive responsibility in his position than Silva does in his. At any rate, in terms of making us play, dictating the game, creating chances, i don't think there can be any doubting how good he was - so good that to criticise him for a defensive error that may have led to the first goal seems a bit captious to me.