Romelu Lukaku marked his return to Stamford Bridge with two goals as Chelsea beat Aston Villa 3-0 to go level at the top of the Premier League.
On his second home debut for Chelsea, Lukaku scored his first goal at the stadium when he latched on to Mateo Kovacic's through-ball in the 15th minute, before firing beyond Jed Steer.
Villa responded well and forced Edouard Mendy into a brilliant double save from Tyrone Mings and Ezri Konsa.
But Kovacic doubled Chelsea's lead on 49 minutes, capitalising on a weak backpass from Mings.
Lukaku added an emphatic third goal in stoppage time as Chelsea became only the second club, after Manchester United, to achieve 600 Premier League victories.
Chelsea are second on 10 points, behind Man Utd on goals scored, while Villa drop to 12th on four points.
See: Chelsea report | Aston Villa report
Next fixtures
Chelsea: 19 Sep v Spurs (A)
Aston Villa: 18 Sep v Everton (H)
Match officials
Referee: Stuart Attwell. Assistants: Dan Cook, Simon Long. Fourth official: Robert Jones. VAR: Chris Kavanagh. Assistant VAR: Dan Robathan.
WHO'S GOING TO BE YOUR
MAN OF THE MATCH?
Vote at Full-time