Michael Owen is backing Manchester United to beat Brighton by at least two goals at Old Trafford on Saturday afternoon.
"If I tell you, for example, that I consider one of the best jobs of my career was to finish second with Man United in the Premier League, you will say, 'this guy is insane, '" Mourinho said.
"That makes it easier for everyone".
Manchester United remain hopeful of tying Anthony Martial to a new five-year contract but have yet to reach an agreement with the France forward.
United face a trip to Arsenal in the FA Cup before taking on Paris St Germain in the last 16 of the Champions League next month.
Manchester United have no plans to sign Rossi, but the striker was delighted to have the opportunity to return to his old stomping ground. "We know more where to attack and where to go". So I would not say it is only myself.
"Seeing their recent games, they are playing a way that allows the quality and pace in their side to show and they look like they can score goals", he added.More news: Cadillac Releases a Teaser of Its First Full Electric Vehicle
"I am too young, I am in football for a long, long time but I will be 56 in a couple of weeks and am really too young".
At some points in the early stages of the season, the Portuguese manager often ignores him while making the team list and that gave rise to numerous speculations that the player's day - at the Theater of Dreams - are numbered.
"I don't think just anybody could have gone in and had the record he has now".
Manchester United are putting the finishing touches to their preparation for tomorrow afternoon's match against Brighton at Old Trafford.
"Any manager coming in after Mourinho couldn't have done any more - the results and performances indicate that whatever way he has done it, and I don't know what way that is, he's got results".
"The people that win and the people who win consistently - you can win isolated and then disappear - the people who win consistently have a different idea about that".