Frank Lampard's first match as Chelsea manager at Stamford Bridge ended in a 1-1 draw as Leicester City fought back to secure a point.
The Blues leapt to a 1-0 lead thanks to Mason Mount's low finish.
However, Wilfred Ndidi's second-half header gave the Foxes a well-deserved equalizer.
Meanwhile, Sheffield United's first Premier League game at Bramall Lane in a dozen years was marked with a 1-0 victory over Crystal Palace.