26 year midfielder joined Manchester in January 2014, from Chelsea. But after joining, he always seen struggling on field toestablish in Louis Van Gaal's line up.
He is a Real Madrid youth academy player, and played 34 games for Spanish national team.
Since joining Manchester he made 35 appearances and scored 11 times. But now Mata is facing challenge form his own team mate Wayne Rooney, as he moved to midfield role. He hes not started a match since 17th January. United are willing to sell him and land long-term target Atletico Madrid's, Koke.
La Liga champions Atletico also want to land Mata.
Koke is key midfielder of Atletico and he is also chased by big clubs, Chelsea and Manchester City.