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.
Arsenal stunned rivals Chelsea 3-0 in the Premier League at the weekend and impressed again at the Emirates in this Group A encounter.
Arsene Wenger's side are now unbeaten in eight games in all competitions since losing to Liverpool on the opening day of the season.
Elsewhere, Manchester City came from behind thrice to settle for a three all draw with Celtic.
The hosts led twice in the first half, Moussa Dembele diverting in Erik Sviatchenko's header and Kieran Tierney forcing an own goal by Raheem Sterling.
Fernandinho's strike brought City level first time and Sterling showed composure to net the visitors' second.
Nolito equalised for the visitors again after Dembele had netted on the turn.
Atletico Madrid secured a one nil over Bayern Munich while Barcelona secured a 2-1 win over Borussia Monchengladbach.
-BBC