If you look back down the line to where it went wrong for the champions, Carrow Road on September 14 is a pretty good place to start.
Newly promoted Norwich City had won just one of their first four league games going into their third home game of the season, against Manchester City, beating only Newcastle United at home to earn Premier League points for the first time since the 2015/16 season.
Daniel Farke’s side had lost their previous game away to West Ham United, ending a difficult start to their top-flight return after losing to Chelsea and Liverpool in a tough first two games. The Canaries had little to no expectation going into the game against the league champions, who had not lost a competitive match yet and scored 14 goals in their opening four games.
However, an array of shocking defending from Guardiola’s men would see Norwich shock the league into beating the title holders, 3-2, and subsequently, begin the downfall of City this season. Alex McLean opened up the scoring after a quarter of an hour, scoring a header towards the near post after being completely unmarked from a corner.
England prospect, Todd Cantwell, doubled the lead just 10 minutes later after the Premier League Player of the Month, Teemu Pukki, unselfishly played a square pass across Ederson’s goal for Cantwell to finish into an empty net.
Despite a Sergio Aguero goal just before half time worrying the Carrow Road faithful, Pukki went on to finish into another empty net just five minutes into the second half, after more woeful defending from City centre back, Nicolas Otamendi.
The game ended 3-2 to the Canaries, shocking fans and pundits in the league into amazement and putting City five points behind an unbeaten Liverpool side early on. And ever since, the gap has continued to grow and City have fallen deeper into their own worries.
It all started here for City and Norwich are partially responsible for such a dramatic sequence of events at the top.