Ahead of today's clash with West Ham, Silva joked: I have already told him to stop crying!
It's enough already! It's nice when you are emotional but there are moments when maybe you don't show those emotions.
I know people love it, probably our fans love it, to have a player so emotional for what he has been achieving and how he has been helping the club these last few months.
But this is the moment for him to stop crying and make this a normal situation."
Silva added: We are all pleased for him. We have been talking with him from the first day he came here, when he had doubts about his future.
At the end of last season when he had a bad loan spell at Middlesbrough, he had doubts about whether he would get the chance to show his quality here.
I was the first one calling him and saying, no doubts here. Go on holiday and come back ready.
He was the same player we saw three years ago in Brazil, the player I really pushed the club to buy.
We showed trust in him and from the first day of the season he showed that he was going to fight for it. The hard work is paying off now."