Mourinho was desperate to get away from the cold of Manchester and he and his squad were free to do so after Coventry's shock victory over Stoke on Saturday ensured the Potters would not be involved in a replay next week.
But the United boss is willing to change his original plans not to sign in January if the right player becomes available and he could swoop for City target Alexis Sanchez in a £35 million deal.
The fantastic opportunity for United to acquire Sanchez could be looming.
The Armenia global has struggled to convince at Manchester United over the past 18 months or so.
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The Armenia worldwide has started only two of United's last 15 games and was left out of Mourinho's matchday squad for six consecutive matches in November and December. I think every player has a price.
"And I am not the kind of blind manager - blind in the sense of, this player is untouchable, can never be sold".
United did not buy a single player in the 2016 or 2017 winter transfer windows, and the only player they picked up in the 2015 January market was back-up goalkeeper Victor Valdes.
Jose Mourinho said on Friday: "Sanchez is an Arsenal player, I don't know but probably this weekend he is going to defend Arsenal colours so I don't think it's correct to say things about Alexis Sanchez".
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In Geneva, UN human rights spokesman Rupert Colville said: "These are shocking and shameful comments". As for the shithole comment, the White House didn't even bother to try to deny it this time around.
"He consulted a Doctor and we made the decision to stop".
Mourinho also took off the Armenian midfielder in their 2-0 win over Derby County in the FA Cup last week.
Elsewhere, Ashley Young is still serving his three-match suspension while Eric Bailly is working his way back from an ankle injury so both players are certain to miss the Stoke game.
'He is our player and a very good player.
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There was also a feeling within Old Trafford that Arsenal, and manager Arsene Wenger, would not sanction a sale to United and Mourinho due to the embarrassment caused by Robin van Persie's success in a United shirt following his move there in 2012 and, perhaps more significantly, the long-running tension between Mourinho and Wenger. So tomorrow training, then Sunday selected and Monday play'.