The ESPN FC crew discuss Arsenal's expectations for the upcoming season. Per Mertesacker has appeared to question Arsenal's chances of success next season and their transfer business so far this summer, as well as claiming they were lucky to finish the season as runners-up in the Premier League behind Leicester. The Gunners have signed Switzerland international midfielder Granit Xhaka, Japanese striker Takuma Asano and Bolton defender Rob Holding while many of their expected rivals at the top of the league have strengthened considerably. Mertesacker admitted Arsenal...