Carlo Ancelotti has reportedly warned he will quit Napoli if Kalidou Koulibaly is sold.
Manchester United are looking to overhaul the squad with the Senegalese defender being one player on the club’s radar.
Napoli are under no pressure to sell Koulibaly but have reportedly put a price tag £129m on the centre-back.
And amid interest in Koulibaly from United and Manchester City, the Napoli manager has issued a warning.
"If there is no Kalidou, I will not even come back from Canada,” Ancelotti said, reports Italian publication Calciomercato.