I'm seeing too many write Arsenal off already. Leicester's title should be a warning, but also our win in 2012. We had finished 3rd the year before, 8 points behind on 71 points. In order to win we had to improve by 18pts and match United with all their title winning experience. At the time the perceived wisdom was that we weren't quite ready, that this would be good experience for a proper challenge the following year.
And the big difference is the World Cup - we really don't know how teams will react to that break and having to start again. It will feel like a new start to season and we have sometimes made slow starts to a season - in contrast to most seasons where free of Champions League over the winter we have put together a run that has proved decisive in the league.
Our games against Arsenal, Chelsea, Tottenham will be crucial. At the moment we have only played Newcastle from the Top 5 and we nearly came unstuck. Long long way to go in this season.