The Daily Mail reports that Everton will make a move for the defender if they lose John Stones to Chelsea.
Chelsea have failed in two bids for Stones so far this summer, but reports suggest they could decide to make an third offer soon.
The second bid for Stones is thought to have been worth around £25million.
Zapata made just 13 appearances for AC Milan last season and reports claim the Italian side could be prepared to sell this summer.
