Sir Alex Ferguson could not have failed to notice the huge banner as he took his seat in the directors' box.
'Not In My Lifetime' proclaimed the sign, mocking Ferguson's infamous response when asked if Manchester City would ever find themselves above Manchester United.
Ferguson, 80, may have been a formidable manager, arguably the greatest of all time, but his bullish claim that City would never eclipse United while he drew breath has come back to haunt him.