Leicester City have signed defensive midfielder Wilfred Ndidi for a reported £15m from Belgian side Genk.

The 20-year-old Nigeria international completed his move on Thursday after a work permit was approved, signing a five-and-a-half-year deal.

Ndidi has already trained with the squad and could make his debut in Saturday’s FA Cup third-round tie at Everton (15:00 GMT).

“He’s an impressive player with a big future,” said manager Claudio Ranieri.

Ndidi helped Genk finish top of their Europa League group to secure their place in the knockout stages of this season’s competition.