Everton boss Marco Silva admits he's unsure about the future of Henry Onyekuru.

The Nigeria attacker has spent this season on-loan with Galatasaray.

"I didn't decide yet," Silva was quoted by The Times' Paul Joyce as saying.

"At this moment we have four wingers in our squad - Richarlison, (Ademola) Lookman, Bernard and Theo (Walcott) - four with right foot and he is one more with a right foot.

"We would have to think about a work permit, also."

Everton's case could be boosted by the forward's potential involvement for Nigeria in this summer's Africa Cup of Nations.