What a difference a title makes. The last time Arsenal played in front of their own supporters, you could cut the nervous tension with a knife as Mikel Arteta’s side scraped to a 1-0 victory over already relegated Burnley. Ninety five days on and having ended their long wait to be crowned champions the following night when Manchester City slipped up against Bournemouth, Arsenal gave Coventry a rude awakening in their first Premier League game for 25 years.