Arsenal are set for one of their final runouts in pre-season as they take on Bayer Leverkusen, so here’s everything you need to know about the friendly. The Gunners have returned to the UK after their trip to the USA for a pre-season tour across the pond. Mikel Arteta got a first glimpse of his squad back in action, with a 2-1 win over Manchester United before a 2-1 defeat to Liverpool. With those games out of the way, Arsenal are now just over a week away from returning to Premier League action, where another title challenge awaits. Clashes against Bayer Leverkusen and Olympique Lyon will rou…