The Serie A leaders managed to secure Fikayo Tomori on a six-month loan deal last season before signing him permanently in the summer.
Gazzetta Dello Sport - via MilanNews - reports Milan are searching for a centre-back to replace the injured Simon Kjaer.
Chelsea stopper Malang Sarr is on the Rossoneri shortlist and they could seek a deal similar to the one that worked for Tomori.
Genk's Jhon Lucumi, Monaco ace Benoit Badiashile and Becir Omeragic of FC Zurich are also being considered.
Sarr has played just three times for Chelsea this season after a loan spell with Porto during the 2020/21 campaign.
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