Costa and Hazard do the damage as Chelsea sweep aside West Ham to maintain Premier League lead
West Ham 1 Chelsea 2
A goal in each half saw Chelsea power past West Ham at the Olympic Stadium and restore their 10 point lead at the top of the Premier League.
Eden Hazard finished off a breathtaking counter-attack move to put Antonio Conte's side in front midway through the first half. N'golo Kante won the ball back in midfield, before Hazard exchanged passes with Pedro and rounded Ireland goalkeeper Darren Randolph to open the scoring.
Chelsea doubled their lead early in the second half after Diego Costa pounced following a Cesc Fabregas corner. Fabregas' pass gave him sole possession of second place on the all-time list of Premier League assists, behind Ryan Giggs.
Manuel Lanzini struck a late consolation goal but it was too late for Slaven Bilic's men.
Tonight's win extends Chelsea's unbeaten run in the league to six games, as Conte's men continue to set the pace atop the table.