Negotiations are ongoing but Leicester are confident of signing the 19-year-old in the New Year in a deal which could rise to £16 million after instalments.

Ndidi can play in the centre of defence or as a midfielder in front of the back four and Ranieri believes his versatility could be crucial over the second half of the season.

Leicester captain Wes Morgan and Robert Huth have struggled at times during the club's title defence but there has been a distinct lack of alternative options for the title holders.