It's first versus 14th in the Premier League on Sunday, but it's no ordinary fixture.
Arsenal host Chelsea in the third derby match between the two sides this season, with the Gunners having won the Community Shield in August and the Blues winning the first league meeting between the two sides in September.
On that day, a Kurt Zouma header and Calum Chambers' own goal won the points for the Stamford Bridge team in a match which saw two red cards for Arsenal and plenty of controversy—not surprisingly—centred around serial offender Diego Costa.
But plenty has changed in the months since with Jose Mourinho sacked, Chelsea's descent in the league table well documented and Arsenal now facing their best chance of winning the Premier League title since 2004.
But while Arsene Wenger's side are 13 places and 19 points ahead of their visitors, Guus Hiddink's men will always pose a tough challenge in the fiery fixture.
To mark Sunday's big clash, we've taken a trip down memory lane to revisit some of the most memorable fixtures between Arsenal and Chelsea in recent history.