Marcos Alonso scored twice as Chelsea beat Leicester to restore their seven-point lead at the top of the Premier League, despite Diego Costa's absence.
The Blues were without their top scorer after a training ground dispute over his fitness, amid reports he has been offered a lucrative move to China.
That saga did not affect them at the King Power Stadium, however, with Eden Hazard setting up Alonso to fire home after only six minutes.
The Spanish wing-back added his second early in the second half when his shot from the edge of the area was deflected home.