The Croatian international was linked with a move to United during his Tottenham days. The 27-year-old scored against the Premier League leaders in the Spanish side's controversial 2-1 Champions League win over the Red Devils last midweek.
Modric has failed to feature regularly for Jose Mourinho's side after completing a £33m move to the Spanish capital last summer. The Croatian international has failed to live up to the expectations of his price tag and was voted the worst La Liga signing of 2012, with ex-Arsenal midfielder Alex Song, who joined Barcelona.
The report suggests the Red Devils manager Sir Alex Ferguson has reignited his interest in signing Madrid's midfielder this summer. Modric has just managed to score one goal and register one assist in La Liga and has failed to match his performance to those while with the north London club.
The Mirror claims the ex-Spurs man has reportedly informed his friends about his disappointment in Spain and is now eyeing a return to England this summer. Chelsea have long been interested in his services and could join United in the race, with Premier League champions Manchester City.
Should Modric join United at the end of the season, it would be a great addition to United's squad as he could be the ideal replacement for club veteran, Paul Scholes.
Ferdinand Disappointed after Chelsea Draw
Meanwhile, Rio Ferdinand has admitted to being disappointed after the FA Cup quarter final tie against Chelsea ended in a 2-2 draw. United were two goals ahead inside the first 11 minutes of the game before second half goals from Eden Hazard and Ramires proved sufficient for the Blues to force a replay at Stamford Bridge.
"We're disappointed, especially after the way we played in the first half. We should have put the game out of sight. In the second half we gave them the impetus to go on and get back into the game. The frustrating thing is that the attacking play in the first half will get overshadowed now and nobody will talk about it. We'll probably talk more about how we finished the game, which wasn't on a good note," Ferdinand told the club Web site.
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