Faria has worked alongside Mourinho throughout his managerial career from the humble beginnings at Uniao de Leiria in 2001 before following him to Porto and eventually to England, Italy, Spain and back to England.
Starting out as a fitness coach, his role in the dressing room has developed into so much more with Mourinho labelling him his: 'methodology right arm, the guy that understands best my information and the way I work'.
And Mourinho will earn double the £5m-a-year salary paid to Van Gaal after being handed the challenge of restoring United to the summit of English and European football.
The former Porto, Real Madrid and Inter Milan coach, whose second spell in charge at Chelsea ended with him being sacked last December, will also secure bonuses of £5m and £2.5m respectively if he guides United to the Champions League and Premier League titles during the length of his contract.
He also famously wore a hat and was alleged to have communicated with Mourinho, who was banned from having any influence on the game for disciplinary reasons, via an earpiece during Chelsea's Champions League clash against Bayern Munich in 2005.
“I think everyone saw it but it is part of the game.United contracts allow international stars a three-week holiday between major tournaments and pre-season - although Sir Alex Ferguson afforded them four - which will see the dates of those returning staggered.Louis van Gaal's final act as United boss was to clinch the FA Cup trophy by beating Crystal Palace at Wembley, meaning Mourinho has an early Wembley date in his diary - just as David Moyes did three years ago.Despite the complexities of Mourinho’s commercial agreements with the likes of Jaguar and Hublot Watches, which could potentially clash with United’s deals with general Motors and Bulova, and the manager’s image rights being held by Chelsea, Woodward and Mendes were forced to unpick the off-field complications of Mourinho’s personal portfolio of sponsorship deals before finalising his package with United.Schweinsteiger, currently on international duty with Germany, claims it will be ‘special’ to play under Mourinho at Old Trafford.