Mata is a highly effective and decorated player so despite becoming a bit of an outcast at United, his ability to assist and score goals of his own has not gone unnoticed.
Clubs such as Valencia and Juventus are rumoured to be interested in signing Mata come January. Reports suggest that a move to the Italian title holders would trigger a possible signing of United summer target Arturo Vidal.
On the other hand a move back to Spain would perhaps better suit the midfielder who spent his youth and some of his senior career in La Liga not to mention that the Spaniard probably still has family in the country.
If a decent offer came along it may be too good to resist for both Mata and United.