Everton face a selection headache in central midfield as they wait on the fitness of Andre Gomes ahead of their Premier League clash with Watford.

The Portugese limped out of the Toffees' opening game of the season against Crystal Palace just before half-time and is a doubt while fellow midfielder Fabian Delph (thigh) remains sidelined.

Full-back Leighton Baines is back training with the squad but another midfielder Morgan Schneiderlin is also unavailble for Marco Silva after being sent off in last weekend's season opener.

Provisional Everton squad: Pickford, Stekelenburg, Lossl, Holgate, Keane, Mina, Digne, Baines, Coleman, Sidibe, Martina, Sigurdsson, Mirallas, Bernard, Andre Gomes, Gbamin, Davies, Iwobi, Walcott, Tosun, Niasse, Kean, Richarlison, Calvert-Lewin.