Santi Cazorla

Reason to watch: Is he Arsene Wenger's best-ever signing?

Santi Cazorla is the much-celebrated club-record signing Arsenal have made this summer.

Despite the ongoing Robin van Persie saga, Gunners fans have had plenty to smile about considering the other arrivals, and Cazorla puts the icing on the cake.

The Euro 2012 winner is set to add even more guile and creativity to Wenger's midfield, and this team is quietly setting themselves up for a potentially fruitful season.