Mourinho’s second-placed United slipped to a shock 1-0 loss to bottom side West Brom on Sunday, a result that put runaway leaders City out of reach.
The United manager said: “I knew that sooner or later that (they) would be (champions) and if I was in their position I would be very upset if somebody said that they won the title because Manchester United lost against West Bromwich Albion.
“They won the title because they were the best team, because they won a great amount of points. They lost only two matches because they were the best team. That’s the reason why they were champions.”
United delayed City’s title celebrations by winning last week’s derby at the Etihad Stadium but Mourinho admitted that victory had a hollow feel.
He said: “Probably because I (have) won eight championships I was not in the moon with the victory against them, because that doesn’t make me feel super happy.”
Mourinho suggested he had already congratulated his rivals in advance.
He said: “I don’t know if I was the first or if I was the second or the third, but I congratulated them face-to-face when I had the chance to do it.”
United produced a subdued performance against the Baggies and were beaten by a 73rd-minute header from Jay Rodriguez.
Congratulations to Manchester City on their Premier League title win.— Manchester United (@ManUtd) April 15, 2018
Mourinho said: “We were masters in complicated football, everything was complicated.
“We couldn’t play fast, we couldn’t think fast, everything was complicated.
“They always had time to organise themselves.
“Probably in our best period, where we were moving the ball better and the team was thinking faster, they scored the goal in the only way they could score a goal, which was in a corner or in a lateral free-kick. After that they closed every door.”
West Brom remain nine points adrift of safety with just four games remaining and seem unlikely to stave off relegation, but caretaker boss Darren Moore was pleased with their efforts.
Moore said: “It was a good performance today and we got our just rewards in the end. We have come up against a very, very good side in Manchester United but everyone stuck to their job and did everything we asked of them.
“In the end, when the ball did break for us, we used it well at times and created chances in open play and then got the goal. It stops the rot.”
Having missed the chance to land the trophy in last weekend’s Manchester derby, City were crowned on their day off after Jose Mourinho’s United side crashed to a shock defeat at the hands of bottom club West Brom.
While City boss Pep Guardiola said he would be playing golf while the United match took place and a handful of players were reportedly out of the country, captain Kompany was at home watching the drama unfold with his family.
Television cameras captured the moment the Belgian discovered he was a three-time champion but, after an initial burst of excitement, he was focusing on the potential for even more success.
“It’s amazing. The first time you win it, you think you’ll win all of them. Then the first time you lose one, you think you’re never going to win another ever again,” he told Sky Sports.
“You just want to hold on to the feeling. It’s a difficult achievement and I’m proud of the team and everyone involved.
“You can’t take it for granted…before you know it, it’s gone. I have been lucky to win three but so many I have missed as well.
“I suppose my team-mates will roll their eyes a little bit but I kind of want to see what the reaction is now. I have never retained a title so I want to see if this team’s got it to carry on and be even more successful.”
Kompany indicated he spoke with the same voice as Guardiola, who can now lay claim to 24 trophies in a nine-year coaching career which includes triumphant spells at Barcelona and Bayern Munich.
“I think we share one thing maybe, the hunger and desire to never be satisfied,” said Kompany.
“This is not a dynasty, it is one title we’ve won. We’re still super happy but there is so much to do before we unlock our full potential.”
After a mixed first season in England, Guardiola faced questions about whether his methods were a good fit for the Premier League. A 16-point lead with five games to play and 93 goals scored represents an emphatic response, not that any doubts ever existed inside the City dressing room.
“We all believed,” said Kompany.
“There was a period of adaptation for him coming into the league and for us taking in his methods.
“They were the right ones and the ones we believed in, I’m sure there are differences to how we play today compared to Bayern (Munich) and Barcelona, we survive and live by the strength of the team.
“One team was dominant in Germany and one had (Lionel) Messi, but we are nothing without the team.”
Guardiola, speaking after Saturday’s 3-1 win over Tottenham at Wembley, declared his own satisfaction at the superb efforts of his squad this term.
“It’s incredible the way we played and I am so glad to be here and be part of this club,” he said on the club’s website.
“These guys are fantastic, awesome – they are incredible. This club is absolutely amazing in all terms.”
He added: “You can win the Champions League in seven games, the league is 10 months. I’m sorry, it’s much more important what these guys have done this season.
“Hopefully we can celebrate with our fans against Swansea (next weekend) and be champions because they deserve it.”
Manchester City’s title was wrapped up after the weekend’s Premier League results.
Here, we reflect on Pep Guardiola’s triumph and the rest of the week’s issues in the top flight.
City stumbles stop as celebrations start
After three defeats in a row – twice by Liverpool in the Champions League and once in the Manchester derby – Pep Guardiola and Manchester City were on the back foot for the first time in the entire campaign.
The soul-searching was banished after 90 highly impressive minutes against Tottenham at Wembley and the title was wrapped up as Jose Mourinho’s Red Devils were stunned by rock-bottom West Brom on Sunday evening. Make no mistake, a 16-point lead at this stage of the season is no accident: City are the country’s dominant force and everyone else is playing catch-up.
Harry getting Kane-d
In going to a formal panel to get a goal credited to him, Tottenham’s Harry Kane made the logical extension of every striker’s instinct to raise an arm and celebrate whenever a goalbound shot has passed within touching distance but it has made him the most meme-worthy target since John Terry’s ‘full kit’ celebrations.
That Jordan Henderson and James Milner both joined in the japes following Liverpool’s victory over Bournemouth suggests he will have to shoulder as much ribbing from his fellow professionals as internet trolls.
World Cup bolters
Gareth Southgate has cast his net far and wide since becoming England manager, but hinted after March’s international break that he was unlikely to consider any new faces for this summer’s tournament.
That conviction may gradually be shaking given the form of Newcastle midfielder Jonjo Shelvey – who earned the last of his six caps in 2015 – and uncapped Liverpool right-back Trent Alexander-Arnold. Both have done enough in recent weeks to gatecrash the conversation.
Gunners facing Burnley battle
Seventh place seemed to be the height of Burnley’s ambitions for much of what has been a superb season, but with five games to go Arsenal have hovered tantalisingly into view.
After defeat to Newcastle the Gunners lie just two points clear while manager-of-the-year candidate Sean Dyche has steered his side to five successive wins. The pair meet on May 6 in what may yet be a decider.
Allardyce and Everton growing apart?
Sam Allardyce confidently declared his season’s work at Goodison Park a success after this weekend’s draw at Swansea, which it is when measured against the chaos and confusion of the early campaign.
But the disgruntled fans who flood the phone-in shows and the persistent rumours of owner Farhad Moshiri looking past the former England boss offer a different perspective. Clarity is needed one way or the other if the Toffees are to grow next term.