Reigning champions Manchester City moved top of the Premier League for the first time this season with a dominant win over struggling Watford.
Raheem Sterling headed City ahead after only four minutes, when free at the back post to meet Phil Foden's excellent cross from the left.
The hosts were repeatedly ripped apart by City's movement, passing and creativity and only a number of saves from goalkeeper Daniel Bachmann kept the score down to one goal in the first 30 minutes.
But City got a well-deserved second as Bachmann denied Ilkay Gundogan, but the rebound fell to Bernardo Silva, who showed excellent skill to beat two defenders and finish well from a tight angle.