After almost 60 goalless minutes, Chelsea grabbed two in quick succession.
The first came after Jan Vertonghen was caught out and the ball ended up at the feet of Samuel Eto’o.
Two minutes and 59 seconds later, Younes Kaboul was sent off for fouling Eto’o as he was about to pull the trigger. Eden Hazard scored from the spot.
Late in the game, substitute Demba Ba grabbed two in a row to reach a total of three for the season.