A little over a week since Thomas Tuchel was named as Chelsea's new manager, the German delivered a statement result against the club's bitter rivals on Thursday with a display that augurs well for the rest of the season.
A 0-0 draw with Wolverhampton Wanderers and a 2-0 win over Burnley represented a solid enough start to one of the most demanding jobs in European football, but beating a Tottenham Hotspur side managed by Jose Mourinho 1-0 away will have won over any sceptical Chelsea fans.