Ben White also scored twice after Leandro Trossard put the Gunners ahead.
Arsenal 5-0 Chelsea: Kai Havertz and Ben White both scored twice as the Gunners go three points clear at the top of the table
US stocks rose for a second straight session in New York Tuesday, building on the prior day's momentum following a round of mostly good corporate earnings, while European markets also rose. "Good news as this is, it does highlight the sluggishness of the UK's top equity index when compared to its US and European competitors," said David Morrison, senior market analyst at financial services provider Trade Nation.