The Portuguese boss has put pen to paper on a three-year deal at the Stadio Olimpico and was unveiled to the press on Thursday afternoon.
The role comes just months after he was sacked by Tottenham – on the week of their Carabao Cup final against Manchester City.
It is an event that still rankles with the 58-year-old, and he insists that his time at Spurs was far more fruitful than the abrupt ending suggests.
He was also criticised during his time at United, where he won the Europa League and the Carabao Cup – as well as picking up a second-place finish behind Manchester City.
“I won three trophies at Manchester United and that was seen as a disaster. I reached a cup Final which I was not allowed to play at Tottenham, and that was seen as a disaster. What’s a disaster for me is considered as a great success for others.”
“I’m not here for the city… it’s amazing and beautiful but I’m not in Rome on holiday. So, we start on 4pm. Training, then… bye”.