Reports in France suggest Milan have made a €5-6m offer for Montpellier centre-back Mapou Yanga-Mbiwa.
The link had already been mentioned over the last few days, but today L’Equipe claims a formal proposal has come in.
The 23-year-old French international was considered one of the best players in Ligue 1 last season and is said to be eager for this move to San Siro.
His contract expires in June 2013, so Montpellier could be prompted to accept the €6m offer rather than his €9m price-tag.
Yanga-Mbiwa is seen as the ideal replacement for Thiago Silva, who was sold to PSG.
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