Considered to be one of the most competent centre-backs in European football, Mats Hummels could be a ready made replacement for the departing Nemanja Vidic.
Though it would appear he has no obvious reason to leave Dortmund, Van Gaal could convince him otherwise, and the challenge of establishing himself in the Premier League might be an appealing one.
Valued at £30million, a move for him would have to be considered seriously, but it is one that looks good from all angles. A player like Hummels would not only bring in experience and pedigree, but he would serve as an indication to how high United want to aim next season.
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