Kevin Constant will face further tests next week after the Milan man picked up an injury on Sunday.
The left-back was replaced at half-time of the game against Inter, a tie which the Rossoneri eventually lost 1-0.
The former Genoa man suffered a foot problem during the first half. He will be examined again on December 30 when the team returns to training after their Christmas break.
Milan will play Atalanta on Monday 6 January.
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