City's captain Vincent Kompany told Sky Sports: You can't describe the feeling.
Only the injured Sergio "Kun" Aguero was missing among the regular starters.
City made the most of their numerical advantage, adding a second before the break through Gabriel Jesus, who netted again after the interval.
Finally, Guardiola's Barcelona side won both the UEFA Super Cup and FIFA Club World Cup in 2009 and 2011 - a double he repeated with Bayern in 2013. Facing champions Chelsea was a chance to send a message to their challengers and City were up to the task.
Mourinho acknowledged that "City were the best team" in the Premier League, telling the BBC: "Sooner or later they would get the points, so no dramas when the best team wins the league".
Benjamin Mendy is still recovering from a long-term cruciate knee ligament injury, John Stones has been ruled out with a thigh problem, and Fernandinho is suspended.
De Bruyne has morphed from a high-calibre attacking midfielder with a knack for goals and thirst for assists into a master of all he surveys from midfield, bending games to his will and always alive to the big moments.
Records were starting to tumble as City cut down their rivals one by one and Arsenal were no match for the runaway leaders.
Although team-mate Kevin De Bruyne and Liverpool's Mohamed Salah are thought to be the frontrunners, Silva's nomination and form are made all the more remarkable given the hard time he has had in his family life.
"Football, bloody hell!" Alex Ferguson said with a bemused smile after United capped the most successful season in the club's illustrious history.
Yet after Manchester United wrenched the trophy out of City's firm grip a week ago having trailed by two goals at half-time, at Old Trafford on Sunday they handed it right back to them.
With United eight points adrift of the leaders before kick-off, City dominated from start to finish to leave their bitter rivals trailing in their wake.
"This week is the first time and it was in different competitions".
Arsene Wenger's side took an early lead through Alexandre Lacazette, but Ayoze Perez equalised before Ritchie bagged the second half victor.
The Premier League bottom side held on to the lead as the match ended 1-0 to the side from the Hawthorns. This was the meekest of surrenders by Manchester United, going down not with a fight but with a whimper.