Yannick Bolasie, pictured with Palace manager Alan Pardew. Mike Egerton/PA Archive/Press Association Images

Everton are closing in on the £25 million signing of Crystal Palace forward Yannick Bolaise, sources close to the player have told ESPN FC.

Earlier on Tuesday, ESPN FC revealed that Everton had seen an £18m bid rejected, with Palace holding out for a higher offer.

But the Merseysiders have come back with an improved bid, which Palace have reluctantly accepted, and Bolasie has been given permission to hold talks and undergo a medical.

Everton boss Ronald Koeman has made the Democratic Republic of Congo international one of his top targets and believes he can become a key player in a new-look Toffees side.

After the departure of John Stones to Manchester City , Swansea and Wales defender Ashley Williams is on the verge of joining for £12m.