Manchester United are watching Napoli defender Kim Min-jae.
Sky Italia's Gianluca di Marzio is reporting United are watching the stopper this season after his arrival from Fenerbahce.
Di Marzio has also revealed Kim's contract carries a buyout clause, which comes into effect in June.
United will be able to sign Kim next summer if they match his €50m option.
Kim has scored two goals in six games in Serie A this season. He has also played the opening two matches in the Champions League.
The South Korea international joined Napoli for €18m from Fener.