Arsenal had waited six games for a league goal against Chelsea.
Then two arrived in the space of two minutes and 21 seconds.
Goals from Alexis Sanchez and Theo Walcott gave the Gunners a 2-0 lead after 14 minutes in a blistering start at the Emirates Stadium.
Chelsea have proven to be a thorn in Arsenal’s side in recent years but they quickly found themselves wishing they could hit the restart button.
Sanchez capitalised on Gary Cahill’s mistake to score on his 100th Arsenal appearance and then Walcott finished off a truly spectacular move that involved Alex Iwobi and Hector Bellerin.
Sanchez opens the scoring
Walcott doubles Arsenal's lead
It’s like Chelsea underestimated the north London club. Or simply expected them to surrender as easily as they have done in recent meetings.
Arsenal’s performance in the first 20 minutes has left plenty citing them as potential title contenders. They were simply ruthless.
Although Arsenal supporters will know too well that this game isn’t over and done with just yet. The Premier League is fierce - Sunderland surrendered a two-goal lead against Crystal Palace this afternoon - and Chelsea are an incredibly resilient team, having scored late winners against West Ham and Watford this season.
If Antonio Conte’s team is unable to turn this around, however, it will mean they’ve picked up just one point from their previous three games. Similar to how Manchester United followed their bright start with with a rocky patch, Conte is finding consistency hard to come by in England.