Silva has slammed Mourinho over his treatment of Spain teammate Juan Mata.
He said: "It did surprise me when he was dropped and I don't think I was the only one.
"The years he has spent playing at Chelsea, he has brought a lot to the side and contributed hugely to their team effort.
"He is a top player and I think he has given Chelsea a lot in his time. As well as the time we spent playing together at Valencia, we were mates before that and besides him being a great player, he is a really nice guy as well."
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