Manchester City swept aside West Bromwich Albion 5-0 in impressive style to become the ninth different leader of the Premier League this season.
Phil Foden had a shot tipped on to the post by goalkeeper Sam Johnstone before Ilkay Gundogan scored for the third successive match to put them ahead.
Joao Cancelo doubled the lead with a curling strike before Gundogan scored his second of the match with another shot.
Riyad Mahrez made it four on the stroke of half-time with a fierce shot from the right-hand side of the penalty area.
He turned provider early in the second half as he played the ball across the six-yard box for Raheem Sterling to tap home the fifth.
City are now top on 41 points, one ahead of Manchester United, who play on Wednesday, while West Brom stay 19th on 11 points, six adrift of 17th-placed Brighton.