Nugent has had a torrid time at Pompey despite winnign an FA Cup winners medal at the club. He failed to become a regular in the top flight and was sent out on loan to Burnley for a period before retaining a place with Portsmouth once they had dropped a division.
He will link up with Sean St Ledger who has just completed his move to the East Midlands amongst a host of other players as Leicester look to spend big this summer.