A week after City surrendered a 2-0 lead to lose 3-2 to United and squander the chance to wrap up the title in flawless style against their arch-rivals, it was relegation-bound West Brom who served it up on a plate.
"They lost only two matches [this season] because they were the best team", Mourinho said.
"These players deserve all my respect because they have been unbelievable all season".
Manchester City club captain Vincent Kompany celebrates a win. "The levels that Pep Guardiola has taken City to this season, I can't see any of the other sides competing with them in the next five years if they continue playing at this level".
He is the first Spanish manager to win the Premier League title - a prize he says is the hardest to claim in Europe.
"Yeah, its special, I'm privileged to be part of such a great group, great players, good guys, good mentality, good atmosphere in the team, every single time I'm on the pitch I enjoy it". But in the seven years that have followed, City have won the EPL twice - no more a Blue Moon, you will agree. "Our City. Premier League Champions 17/18".
But to the surprise of many football pundits and lovers, Manchester United were beaten at home as Manchester City dethroned Chelsea as EPL Champions.
The ownership change has certainly made an impact as City sealed their third Premier League title under the ADUG in a decade after many years of indifferent results of mid-table and relegation battles, which also saw them drop down to the lower divisions a few times.
After sacking Alan Pardew at the start of the month, Darren Moore has been handed the West Brom until the end of the season. He has retained core members of the team that contribute to City's recent title successes and harnessed vibrant young attacking signings such as Leroy Sane and Gabriel Jesus alongside them.
'I'd like to stay humble, it's not a dynasty, it's just one title. After they were dumped out of the Champions League in the group stage, they were knocked out in the FA Cup and found wanting in the EPL where they finished third, 15 points behind league winners, Chelsea.