Napoli have allegedly been informed that Manchester United remain interested in signing defender Kalidou Koulibaly.

While the centre-back has previously been regarded as indispensable at Stadio San Paolo, president Aurelio De Laurentiis is now open to parting ways with the club's key asset.

Keen to strengthen their backline before the end of the transfer window, Manchester City boss Pep Guardiola wants to bring the 29-year-old to the Etihad Stadium.

However, according to Il Mattino, Fali Ramadani has told Napoli that United are interested in negotiating a deal for the player.

Despite previously being valued in the region of £80m, the Serie A outfit may be prepared to cash in for a fee around the £60m mark.

Koulibaly still has three years remaining on his contract.