Milan continue to push to sign Sven Botman and according to Sky Sport Italia, the club owners are now involved in negotiations.
Milan must find a replacement for Simon Kjaer, who has been ruled out for the rest of the season with a knee injury.
Fikayo Tomori has also been forced to the sidelines for a month after a keyhole injury on his left knee.
Milan transfer news: Bailly or Tanganga? Maldini waits for Paratici’s green light
They are in talks with Manchester United and Tottenham Hotspur for Eric Bailly and Japhet Tanganga but would only sign one of them on loan without investing to secure their services permanently.
On the contrary, they are keen to sign Botman on a permanent transfer in January and although Lille are unwilling to sell the star defender in the winter transfer window, Milan are refusing to give up.
Calciomercato.com and Sky Sport Italia report talks between the two parties are still ongoing.
According to the broadcasters, negotiations involve the ‘highest departments’ of both clubs with owners of Lille and Milan now in direct contact, trying to find an agreement.
Merlyn Advisors own Lille and bought the club from Milan owners Elliot in 2020. The two clubs are on good terms, having completed other transfers in the past, such as those of Rafael Leao and Mike Maignan who moved to San Siro from France.