Chelsea moved seven points up the points table by beating Bournemouth 3-0 to set a club record of 12 straight Premier League wins.
Cesc Fabregas set up Pedro to break the deadlock with a deflected shot that looped into the top corner.
Eden Hazard capped an impressive display by making it 2-0 from the spot after he was brought down by Simon Francis.
Chelsea added a third goal deep in injury time when Pedro’s shot hit Steve Cook and the ball span over the line.
Bournemouth’s best chance saw substitute Benik Afobe denied by Thibaut Courtois but the Cherries ended up well beaten.
Liverpool can reduce Chelsea’s lead to six points if they beat Stoke on Tuesday.