Theo Walcott scored twice as Arsenal put in a dominant home display against Basel in the Champions League.

It took the Gunners just six minutes to open the scoring as Walcott headed in from Alexis Sanchez's cutback.

The two Arsenal men linked up again as Englishman Walcott drilled low into the net to complete a swift team move.

Basel goalkeeper Tomas Vaclik made good saves to deny Sanchez and Hector Bellerin, with Birkir Bjarnason coming close for the visitors.