It is the power shift that turned English football upside down. Seven domestic trophies have helped Manchester City emerge from Manchester United's shadow to become a dominant force in the game, and right now the fortunes of the two sides could not be much further apart.
While United are reeling from the loss of three of their first seven Premier League matches, City are unbeaten and top of the table. While Jose Mourinho is fighting to prove he is worthy of remaining as manager at Old Trafford, Pep Guardiola remains at the top of his game and regarded—probably—as the best coach in the world.