Sir Alex Ferguson is believed to be tracking Palermo centre back Simon Kjaer.
Ferguson and assistant manager Mike Phelan were reported to be in Italy on a talent scouting trip to see Simon Kjaer in action for Palermo this week.
The Manchester United pair originally made the trip to Italy to watch their Champions League opponents AC Milan, who were the victors against Udinese at the San Siro.
The United boss is on the lookout for another centre back with Serbian defender Nemanja Vidić looking increasingly likely to be moving to Barcelona in the summer.
Manchester United have had numerous injury problems in the centre of their defence with Rio Ferdinand, Nemanja Vidic, Wes Brown and Jonny Evans all sustaing substantial injuries at some point this season.
Kjaer signed for Palermo in 2008 and has made over 40 appearances for the Italian side scoring 5 goals.
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