Given the immense quality of the Manchester City squad, on any given matchday there is surely no end to the selection dilemmas pinging around inside Pep Guardiola's brain.
Which two of his five senior centre-backs should get the nod? Should Ilkay Gundogan or Bernardo Silva partner Kevin de Bruyne in attacking midfield? Which wide players are best equipped to beat a specific opponent? There must be no end to his self-questioning.
However, when City return to Premier League action on December 28 away at Leeds United, there could be a fresh dilemma that not even Guardiola was expecting to encounter.