Robbie Keane scored twice as Los Angeles Galaxy claimed their fourth successive MLS victory by routing New York City FC 5-1 at Stubhub Center.

The hosts never looked back after Gyasi Zardes opened the scoring after 36 minutes, flicking a header home from Keane's cross, while the provider turned goalscorer nine minutes into the second half when the Republic of Ireland striker chipped over City goalkeeper Josh Saunders.

Former Tottenham and Barcelona forward Giovani dos Santos struck midway through the second half, breaking through to lift the ball over a helpless Saunders.

And it was 4-0 three minutes later when Steven Gerrard's free-kick was tapped in by Sebastian Lletget before City pulled one back 10 minutes from time through David Villa's spot-kick after Patrick Mullins was fouled by Dan Gargan inside the area.

It proved scant consolation for Jason Kreis' men - who were without the injured Frank Lampard - and their woes were deepened almost immediately after their goal when Keane bagged his second with a close range finish from Robbie Rogers' low cross to restore the Galaxy's four-goal cushion.