West Ham 0 Team badge of Chelsea Chelsea 1 Hazard 22′ FT 90 +8 HT 0-1

• Chelsea five points ahead at top
• Blues have scored in 14 straight games
• West Ham only have one win in 11
• Allardyce's Hammers drop to 10th

Chelsea stayed five points clear at the top of the Premier League as a hard-fought win at West Ham kept them on course for a first title in five years. 

Eden Hazard headed the visitors ahead from Ramires's right-wing cross.
Ramires shot against the post for the visitors after the break before having a header brilliantly saved by Adrian.
West Ham troubled Chelsea throughout but wayward finishing ensured the visitors survived a nervy second half to hold on to another crucial victory.
Manchester City's win at home to Leicester means there is no change at the top of the Premier League and, with a game in hand, the title is Chelsea's to lose.
They were made to fight all the way for the three points, especially in a frenetic second half that saw the Hammers squander a host of opportunities.
Chelsea's League Cup final win over Tottenham on Sunday was their first trophy since Jose Mourinho's return as manager in 2013, and they will hope there are more to come this campaign.
With only one defeat in their last 11 Premier League games, they looked on track again as, after dominating possession for 20 minutes, Hazard headed home Ramires's pinpoint cross, although West Ham felt the Belgian was offside.

Mourinho's men have not had everything their own way in recent months, including an FA Cup exit to Bradford and a league draw with Burnley, but only a brilliant last-ditch tackle from Carl Jenkinson stopped Diego Costa from doubling the lead soon after.
Chelsea's minor slips are nothing compared to West Ham's league slump, having won only once in 10 league games before kick-off, falling from fourth to ninth.
Manager Sam Allardyce will point to the fact his side went into the match eight points better off than they were last season but they are in danger of their European hopes disappearing.
They had no shortage of chances at an atmospheric Upton Park though and, with better finishing from Sakho and Enner Valencia, they could easily have been level as they raised the tempo to rattle a below-par Chelsea.
In the second half, Ramires was denied by the post and Adrian, while Sakho was kept out by the impressive Thibaut Courtois as the Hammers put their visitors under heavy pressure.
Chelsea's big celebrations at the final whistle showed how hard they were made to work.