Almost an hour right into a tie that burned imperceptibly till its unlikely late combustion, Arsenal had been handled to a glimpse of precisely who was in cost. They’d gained possession simply outdoors Portoâs penalty space and Kai Havertz, advancing with objective, noticed an opportunity to play Gabriel Martinelli by means of. Instead the ball ended up with Pepe, gimlet-eyed and completely positioned. Seconds later he had carried it 30 yards up the pitch earlier than sliding a exact go by means of the midfield to Evanilson, sending the hosts away as soon as once more. There was a way he may have carried out all of it once more with a…