Jutarnji List says Modric has told Real teammates he is keen on a move to United.
United are yet to make a bid for the Croatia international, but he is on the radar of manager David Moyes.
The stumbling block could be a foot injury suffered by Xabi Alonso, which is set to keep him out of the first-half of the season. Real coach Carlo Ancelotti will be reluctant to leave his squad short of midfield options.
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