The FA Cup third-round draw has handed Arsenal a north London derby with neighbours Tottenham Hotspur at Emirates Stadium.
Robin van Persie says his Manchester United strike partnership with Wayne Rooney will go from strength to strength as the season progresses.
Arsene Wenger was happy to have five points between Arsenal and their nearest challengers after a hard-fought 1-1 draw with Everton.
Roy Keane believes Sir Alex Ferguson is still trying to exert "control and power" at Manchester United, despite retiring as manager in the summer.
Arsenal midfielder Mathieu Flamini has warned Arsenal cannot afford to lose focus as they face a run of fixtures which will test just how far they have come this season.