The new Premier League campaign is finally here, starting with Arsenal's home meeting with Leicester at the Emirates on Friday evening. But what are the major tactical issues facing the title contenders?
Here's a run-down of the major question mark about each side's tactical approach.
Arsenal: Will they stick with the 3-4-2-1?
The immediate answer to this question is simple: yes. Arsene Wenger's decision to switch to a three-man defence last season for the first time in over 20 years completely...