It had previously been claimed that the Portuguese could jump ship at the end of the current campaign in order to take over at French giants PSG, after the United boss praised the Parisians as 'special' during an interview wth 'Telefoot'.
However, United's board are not concerned by the reports according to 'The Guardian', with the club thought to be confident that Mourinho is desperate to win his side the Premier League title.
The aformentioned source claims that the United board are more than happy to keep Mourinho at the club for 10 years, as that would mean that he had established a long period of success.
United have reason to be concerned, with Mourinho's longest ever spell in charge of a club his three-year tenure with Chelsea the first time around, but it is thought that the club are confident the experienced boss maintains the same desire as ever and has no intention to leave Manchester any time soon.
The 'Red Devils' currently find themselves in second place in the Premier League, eight points behind leaders and arch-rivals Manchester City as they look for their first title since the retirement of Sir Alex Ferguson back in 2013.