The Portuguese was announced as Louis van Gaal's replacement on May 27 and on Wednesday named defender Eric Bailly as his first signing.
He then posted a photograph of his desk on his official Instagram account, with the caption "now is the time to enjoy - produce pre-season training sessions".
On the photo was a red folder with 'Tour 2016' on it - Mourinho's dossier for the forthcoming tour of China - while there also appeared to be a pencil case with Mourinho's face on, along with the club crest.
Also laid out are a number of notepads and spreadsheets - presumably detailing the schedules Mourinho is building for his new players as he looks to return them to Premier League title contention.
Source : PA
Source: PA