Mats Hummels promised to Sir Alex Ferguson that he would join Manchester United if he ever leaves Borussia Dortmund according to the Daily Mail.
The German defender has been attracting plenty of interest in recent weeks as speculation over who he could be playing for next season continues to mount.
Hummels is under contract with Dortmund with 2017, but according to reports Manchester United will make a move for him at the end of the current campaign. According to Dortmund chief Hans-Joachim Watzke Hummels has told the club that he is considering his options as things stand, but insists a transfer isn't on the cards just yet.
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He told Bild: "Mats held talks with me and [sporting director] Michael Zorc 14 days ago, and informed us that he is mulling over his future. That's totally legitimate.
"He is under contract until 2017, and we have not received an offer. That's why we are completely relaxed."
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However they may not be so relaxed after reading the report in the Daily Mail today, which claims that Manchester United will be his eventual destination. The paper reports that Sir Alex Ferguson visited Dortmund for a scouting trip during the 2012 Cup final to see Hummels, Shinji Kagawa and Robert Lewandowski.
He went on to seal a deal to take Kagawa to Old Trafford but missed out on the other two, but the Daily Mail, quoting sources in Germany, say that Hummels met and promised the legendary manager that he would head to Manchester United if and when he decided to leave Germany.
Manchester United are in desperate need of some new defenders after failing to add world class reinforcements to their ranks last summer. According to reports, Dortmund will try and hold out for a fee close to £36 million but that is unlikely to stop Red Devils boss Louis van Gaal from making his move.
The move could spell trouble for his current centre-backs. Van Gaal can call upon the services of Jonny Evans, Phil Jones and Chris Smalling as things stand, while Marcos Rojo and Daley Blind can also fill in when called upon.
Paul Pogba, Kevin Strootman and Memphis Depay are just a few of the names linked with a move to Manchester this summer.
Manchester United are in dire need of a centre-back, and Hummels is certainly good enough for the job. He may lack a little pace but he's a leader and is always composed, exactly what this Manchester United side need.
Indeed, Louis van Gaal may owe Sir Alex Ferguson a drink if he delivers on his promise to ignore Arsenal and turn up at Old Trafford.