Few fixtures on the calendar generate as much trepidation for Arsenal supporters as a visit to Stamford Bridge to face Chelsea.
The match has come to represent how the balance of power in London - and English - football has shifted over the past 20 years.
From Arsene Wenger taking over at Highbury in 1996 to the arrival of Jose Mourinho at Chelsea in 2004, they went unbeaten in eight visits to the Bridge, winning four of them.
And even as Arsenal drifted from being regular title challengers later in that decade, they could still point to a respectable record of just four defeats in 16 matches there.