Not only has Jose Mourinho never lost a match against counterpart and rival Arsene Wenger, but his side are comfortably top of the league.
Chelsea are six points above the Gunners, and can stretch that to nine with a crucial home victory.
The Blues have scored more, attempted more shots, created more chances, and have won five games rather than two, but Arsenal can take heart in three key areas.
Arsenal vs Chelsea per game 2014/15
|Ball Recoveries||Successful Final Third Passes||Touches|
Arsenal have won the ball back more times per game than Chelsea have, a trait which will be key in attempting to get a foothold in the match at Stamford Bridge.
They have also made more successful final third passes per game than Chelsea, a staggering 164.
Comfortable in possession, Arsenal average more touches in each match than the Blues do, and will look to get on the ball and out-pass and out-score Chelsea.
Given it's an away game against a fierce rival, Arsenal will not have as much of the ball as they would normally enjoy, but their ability on it stands them in good stead to make use of the chances they do get, and in confident form after the 4-1 in over Galatasaray, the Gunners could spring a surprise and avenge last season's 6-0 thrashing.