Guardiola has warned that City are still not good enough to win the Premier League or Champions League despite their flying start to the season.
City outclassed United in the Manchester derby on Saturday to make it six wins in a row under Guardiola – scoring 17 goals in the process under their new coach – but the Spaniard insists that they still need to improve if they are going to be challenging for trophies at home and abroad.
Ahead of Tuesday’s Champions League Group C opener against Borussia Monchengladbach at the Etihad, Guardiola said: ‘To take it to the next level we have to improve a lot to things.