Gabriel Martinelli sinks Aston Villa to maintain Arsenal’s perfect start

If the season were a few months older, and if Arsenal did not have a decade and a half of underachievement to nag at them, this might be called the stuff of champions. Make no mistake, the league leaders mauled Aston Villa here: for most of the night it was barely a contest but a nasty surprise was never out of the question while they led by only one goal.When Douglas Luiz duly swung in one of his corner-kick party pieces moments after coming on as a substitute, 58,000 pairs of eyes might have rolled; they have seen it all before at a venue that knows false dawns like few others.