Goals from John Terry and Diego Costa handed Chelsea a 2-0 win over West Ham United at Stamford Bridge.
Chelsea went in search of the opener and were nearly rewarded in the fourth minute, as Oscar blasted over the crossbar from six-yards out.
The Blues then went close in the 20th minute, as Gary Cahill forced Adrian into a fine save from close range.
Chelsea eventually took the lead in the 31st minute courtesy of a tap-in from captain John Terry, his second in as many games.
It was proving to be a busy afternoon for the West Ham goalkeeper and he was called into action 10 minutes after the halftime break to keep out Eden Hazard's stinging effort.
Chelsea eventually doubled their lead in the 62nd minute, as Diego Costa did well to make space for himself before firing a low effort into the far corner.
West Ham had their shot-stopper Adrian to thank for keeping the score down to just 2-0, as the Spaniard pulled off numerous saves throughout the 90 minutes.
The visitors' best chance of the game fell to Morgan Amalfitano, who struck the upright from six-yards in the 87th minute.
It proved to one of the Thibaut Courtois' uneventful games, as the Hammers failed to test the Belgian shot-stopper.
Jose Mourinho's men maintained their spot at the summit of the table, while West Ham remain unchanged in fourth spot.