Manchester United boss Mourinho saw Faria leave Old Trafford back in the summer, with his compatriot choosing to go it alone after working under the 55-year-old at Porto, Chelsea and Inter Milan as well.
Since then, however, the Red Devils boss has cut an increasingly sulky figure. Gone are the days where he would woo with wit and charm, with Mourinho no longer the blockbuster character of old.
Given Manchester United’s wayward form, it is no surprise. The club are currently eighth in the Premier League and enter today’s crunch fixture with Fulham needing to pick up the points.
And Goal have now shed some light on Faria’s decision to leave the club – and the gambles Jose Mourinho took afterwards.
Speaking back in May, Mourinho explained the importance and significance of his long-term ally.
The United boss said: “I never had a brother.
“I had a sister who passed away many years ago.
“Rui is the one who is the closest to a brother.
“We spend more time with each other than we do with anyone else in our lives.”
And Goal claim the United boss chose to gamble in the wake of Faria’s exit.
Mourinho decided to add young duo Michael Carrick and Kieran McKenna to his backroom staff, convinced they would give the club more options.
It is said he opted to go for a ‘wide-ranging team of assists than he had previously worked with.’
However, that decision has so far backfired.
United players are at war with their manager with senior trio Paul Pogba, Romelu Lukaku and Alexis Sanchez all supposedly wanting out.
Meanwhile, a recent report claimed United figures were concerned by Mourinho’s behaviour in the wake of Faria’s departure.
A source told the Daily Star: “Rui was the only person prepared to stand up to Jose in the past and talk some sense into him at times.
“They were best mates and inseparable.
“Even this could lead to fall-outs, but Jose respected him more than anyone else.
“Now Rui has gone and isn’t by his side, who knows what could happen?
“Jose is off the leash and who is going to control him?”