Marco Pellegrino will be out of Pioli's AC Milan squad for around couple of months while Pierre Kalulu could be sidelined for four months and may require an operation soon. For this reason, the Rossoneri may look to sign a new defender due to these setbacks.
The Rossoneri club will not look at the free agent market, but will wait for the reopening of the winter transfer window. Meanwhile, Jan-Carlo Simic will be promoted from the Primavera team.

As reported this morning by the Italian newspaper Tuttosport, a name that could come back into fashion is Maxime Estève, a 2002-born defender from Montpellier that the Rossoneri club has already pursued in the past. He hasn't been playing much this season (only two appearances so far) and could potentially be available at an interesting price.
Last summer, the French club's asking price was 5-7 million euros, but now their demands will necessarily have to be lower.
Koulierakis on the AC Milan shortlist, but the price tag may be a little too high...
Obviously, Estève is not the only profile being followed by Milan, who have also set their sights on Konstantinos Koulierakis, a strong 19-year-old defender from PAOK and the Greek national team, who is highly regarded. Moncada and his collaborators have already given him full ratings, but attention should be paid to the Greeks' asking price, which can be at least 10 million euros, a figure currently considered too high by the Rossoneri.