Oleksandr Zinchenko still has a crucial role, Arsenal's defence is only getting stronger - and Mikel Arteta is banking on one star's fitness - FIVE THINGS WE LEARNED from the Gunners' rampant 4-1 win over Bayer Leverkusen
ISAAN KHAN AT THE EMIRATES: Arsenal secured an important 4-1 win over Bayer Leverkusen in their penultimate pre-season friendly ahead of the new Premier League season.