Guus Hiddink’s side started the better of the two, with Pedro putting the ball past Kaspar Schmeichel, but was ruled out for offside.
Several top class saves from Schmeichel ensured the score remained 0-0 going into the interval.
The Blues were awarded a penalty after Jeffrey Schlupp brought down Nejman Matic in the area, Cesc Fabregas converted from the spot.
A screamer from Danny Drinkwater ensured the Foxes maintained their unbeaten run.
Here’s a selection of the best images from Stamford Bridge: