Arsenal put concerns about its lack of firepower heading into the start of new season to one side to cruise to a 8-0 victory over Viking Fk in Norway. In its penultimate game of preseason, Arsenal led just 1-0 at halftime, after Joel Campbell slid in to get the final touch on Mohamed Elneny’s header. But, against a team with its mind clearly elsewhere ahead of a league match on Sunday and that made several changes at halftime, Arsene Wenger’s side ran riot in the second half.