Kerr nodded home a deep cross from Norwegian winger Guro Reiten on 13 minutes to put the Blues 2-0 up shortly after Bethany England had given Chelsea an early lead on Sunday.

A stunning left-footed strike from the edge of the area from Sophie Ingle increased Chelsea's lead seven minutes later to stun the hosts who had lost just once this season and won their last five matches.

Reigning champions Arsenal, who are coached by Australian Joe Montemurro, found themselves 4-0 down after 68 minutes when Reiten headed past Manuela Zinsberger from close range.

Beth Mead grabbed a consolation for the Gunners but Chelsea closed the game out in efficient manner to wrap up a third successive victory.

The Blues sit a point behind new leaders Manchester City, who usurped Arsenal on goal difference after beating Birmingham 2-0.

But Emma Hayes' side have a game in hand.

Despite having to wait two WSL games before witnessing the W-League's all time top-scorer Kerr get on the scoresheet, Hayes was full of praise for England, claiming the Lionesses' striker scored a 'worldie' of a goal.

"I am really happy for Sam but Beth (England) deserves so much credit.

"There has been talk over the years about Jodie Taylor and Ellen White, but that girl is England's number nine as far as I am concerned."

Australian Associated Press