Napoli ace Kalidou Koulibaly was the subject of a €100million (£90m) bid from an unnamed Premier League club this summer, president Aurelio De Laurentiis revealed.

The Senegalese was central to the side that pushed Juventus all the way in the Serie A title race last season and quickly emerged as a summer target for Maurizio Sarri, who was in charge of Napoli last season, at Chelsea.

But having already lost Jorginho to Sarri this summer, De Laurentiis confirmed the Neopolitan side would not be negotiating any sale for Koulibaly.

Kalidou Koulibaly was the subject of a £90million bid from an unnamed Premier League club

But club president Aurelio De Laurentiis says the Senegalese ace will not be sold this summer

'It's true, we had a €100m bid from the Premier League for Koulibaly, but we're not negotiating his sale,' De Laurentiis told Radio Kiss Kiss.

'He's a very good person and we've never had problems with him.'

Koulibaly played all three matches for Senegal at the World Cup and has long been linked with a switch to the Premier League due to his aggressive style of play.

Koulibaly impressed last season as Napoli pushed Juventus all the way in the Serie A title race

Manchester United are in the market for a central defender and it remains unclear if they were the side to have lodged the bid.

If a deal was to be struck at the current offer or higher, Koulibaly would easily become the most expensive defender in world football.

The current record is held by Liverpool's Virgil van Dijk following his £75m switch from Southampton to Merseyside.