On an individual level, the likes of Pogba, Sanchez and Lukaku failed to produce the spark and unlock West Brom's stellar defence. "Premier League Champions 17/18", City tweeted soon after the final whistle.
Manchester United come up with another lacklustre performance: United supporters will have expected to cruise to a comfortable win over West Bromwich Albion after they secured a surprise 3-2 derby win over Manchester City in the previous week.
Following a promising start to the season, United looked as though they were going to challenge for top spot.
"If I was in their position I would be very upset if someone said they won because United lost against West Brom".
With the game still at 0-0, Jose Mourinho took a decision to substitute Pogba for compatriot Anthony Martial in the 58th minute. Caretaker manager Darren Moore was obviously pretty pleased with the win as his side put in an astute defensive display in the dying minutes of the game.
It's the third Premier League success for the club after the titles won in 2012 under Roberto Mancini and 2014 under Manuel Pellegrini with captain Vincent Kompany, David Silva, Sergio Aguero and Yaya Toure involved in all of them.
Mourinho said: "We were masters in complicated football, everything was complicated". Everything was complicated. We couldn't think fast, we couldn't play fast. The rest of the squad was spread out across Europe, and even beyond, on their day off after City's 3-1 win at Tottenham on Saturday night had left the league title agonisingly close.
Champions City are better than United and deserved December's 2-1 win at Old Trafford.
"We didn't want or played simple, everything was slow, one more flick, trick, turn". In sealing the league at this stage, City matched the record for the earliest title win, held by United since 2001.
United have to better them and if they can't do it in the Premier League, they have to be successful in Europe.
Immeasurably worse for United is that Sunday's catastrophe was preceded by the performance of the season, a comeback that ranks among the greatest in the proud history of a club that epitomises "never say die".
"And probably because I won eight championships I was not in the moon with the victory against them because that doesn't make me feel super happy, and in my opinion affected for sure some of the people that were too happy just with that".