With 12 of his players featuring in Russian Federation - including new signing Fred -Mourinho faces the prospect of preparing for the new season without the bulk of his first-team squad.
To be fair to him, this is a tough job as he went in there after Louis van Gaal, who took Man United backwards, and he has got to try and build them up to Manchester City levels again.
Alternatively, Mourinho could choose to use Fred in a more conservative role alongside Matic in a two-man defensive midfield screen.
Fred has great levels of energy coupled with exceptional creativity making him the ideal deep-lying maker that United wanted.More news: New Gmail rolls out to all in July, becomes compulsory in October
From Donetsk to Manchester, from Monaco to Liverpool, both Fred and Fabinho are now donning a red jersey in the north of England for Manchester United and Liverpool, respectively.
Handed his debut by Dunga in 2014, Fred's worldwide career was disrupted after testing positive for the diuretic hydrochlorothiazide during the 2015 Copa America.
It is likely he will slip straight into United's first team next season and make up a three-man midfield with Paul Pogba and Nemanja Matic. The retirement of Michael Carrick has left a huge hole to fill in that department. He'll also face a significant step up since the Premier League is of a far higher standard than Ukraine's top division.
At Shakhtar Donetsk, Paulo Fonseca prefers a 4-2-3-1 system which is very similar to the system that Jose Mourinho uses at Manchester United. He is the type of player who, when things are going badly, you can give the ball to.
HD Cutz has gained a reputation for being the chosen stylist of many footballers, proudly counting Raheem Sterling and Leon Bailey among clients on its website, as well as being the Belgium team barber from 2015 to 2018.