After Manchester United lost 6-1 at home to neighbours City at Old Trafford 10 years ago, defender Patrice Evra was stopped on his way home by a supporter as he filled his car up with petrol.
'Don't worry,' Evra was told. 'We are still the best team.'
United subsequently won their next five games without conceding a goal and did not lose again in the Premier League until New Year's Eve. In the end, City sneaked the title from their rivals only on goal difference.
A decade on and United are a club awash with introspection once more.