David Moyes is said to be keen on taking the job at Everton now.
And Moyes reportedly told Sky Sports Soccer Saturday pundit Charlie Nicholas last month that he felt Silva was on the edge.
"I've been speaking to David Moyes and a couple of Everton fans and they were saying they always feel they're two or three bad results away from this manager being strangled out of this club,” the Daily Express quoted Nicholas as saying.
Whether Silva will be sacked by Everton remains to be seen, but unless their form improves that seems the inevitable ending.
Everton had big expectations going into this season, but they have failed to live up to them so far.
If Silva was to go, Moyes appointment at Everton would be highly controversial.
Moyes was very successful during his last spell in charge at Goodison Park, but his managerial career has not gone according to plan since.
Moyes has struggled at Manchester United, Sunderland and West Ham United more recently, and some Everton supporters may be left feeling that his arrival would show a lack of ambition.
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