Mourinho sold Mata to Man United while he was Chelsea boss in 2014. Shortly before the Spaniard left, Mourinho had assured Mata’s advisers that he had a future at Stamford Bridge.
The departure was viewed as harsh at the time, as Mata had twice been named Chelsea’s Player of the Year.
Mata is keen on staying at United after winning the FA Cup with the club last week – he scored a crucial equaliser at Wembley – but he is uncertain of his future under Mourinho.
Marouane Fellaini, whose performances have divided supporters, may also be sold, while the out of contract Michael Carrick is still unsure of his standing at Old Trafford as he is yet to be offered a new deal.
Mata has endeared himself to supporters during his time at United but there is a sense that he should be doing more to justify his place in the team. His goals and assists record is good but, all too often, Mata has disappeared in games. His lack of an all-round contribution may not be enough for Mourinho, who is known to demand total commitment from his players.
That being said, it would be a shame to lose Mata and the hope is that Mourinho at least gives the Spaniard a chance to show what he can do.