West Ham have won just two and lost 16 of their last 22 Premier League games against Chelsea.
Chelsea won 2-1 in both Premier League meetings last season, but West Ham came out on top by the same score in a League Cup tie at the London Stadium.
Chelsea are one victory away from their 50th in all competitions against West Ham.
The Hammers are now without a win in eight league games, including five defeats. They have scored only six goals during that run.
The Irons have not gone nine top-flight games without a win since May 2011, a season which ended in relegation.
West Ham’s tally of 10 points after 15 games is their lowest at this stage of a Premier League season.
The Hammers have taken only one point out of a possible 12 under David Moyes.
This is the 41st consecutive Premier League matchday that a side managed by Moyes will start out in the relegation zone, breaking John Gorman’s record set at Swindon Town in 1993-94.
Nine of Manuel Lanzini’s 15 Premier League goals for West Ham have come in London derby matches, including two in as many games against Chelsea.
Chelsea are unbeaten in their last seven league games, winning six of them.
The Blues’ last league defeat came in a London derby away to Crystal Palace in mid-October.
Chelsea have won each of their last seven Premier League matches played in December.
Eden Hazard has been involved in seven goals in his last eight Premier League games against the Hammers, scoring four and setting up three.
Bookies have West Ham a 6/1 chance for a win while the draw is 3/1 and a Chelsea win is 1/2
A West Ham 1-0 win is 18/1, while 40/1 can be obtained for a Hammers 2-0 win and the brave amongst us can get 150/1 if can pull off a memorable 3-0 win. Those with maximum confidence in our defence might be interested in the goalless draw at 12/1!
I thought was on WHTID – well done Sean