It's important to note that he hasn't actually been confirmed as the next manager but...
Many Manchester United fans are somewhat concerned with rumours that Mourinho would seek to offload Juan Mata for the second time in his career, should he take over the reigns from Louis van Gaal.
Of course the Portuguese was directly responsible for Mata arriving at Old Trafford, after he sanctioned the player's sale back in 2014. At the time, many Chelsea fans were sad to see the popular playmaker go...
https://twitter.com/jennyfoden/status/426474625833639937
https://twitter.com/Danial_Ibbi/status/426479961130934273
https://twitter.com/MannyMB9/status/426409804144209922
https://twitter.com/Gilo_19/status/426480129502892032
https://twitter.com/naseem95/status/426395442919014401
And it seems that United fans are echoing these sentiments two years on, with stories abounding that Mourinho would look to repeat history and
flog the Iberian at the earliest opportunity...
https://twitter.com/UnitedRevealed/status/697568873852313600
https://twitter.com/TomReidRule45/status/697563844047147010
https://twitter.com/ChrisMurray18/status/697776724810059778
https://twitter.com/Juanquartista/status/697557433632342016
https://twitter.com/itsomair/status/697717240968388609
https://twitter.com/YusriyaBella/status/697582973965766659
https://twitter.com/Tblocko/status/697708069858516993