Everton has signed Muhamed Besic on a five-year deal believed to be worth €5 million.

Besic, a 21-year-old midfielder, featured for Bosnia in the World Cup and arrives from Ferencvaros.

"Muhamed is a young footballer who has developed massively in the last two seasons. He has been playing as a centre-half and as a defensive midfielder at an incredible level," Martinez told the club's official website.

"What he did with Bosnia-Herzegovina in the World Cup, he showed that he is a really mature footballer, that he covers the ground really well, that he is very dynamic and technically very gifted.

"He is bringing us really good strength in an important part of the side."