#1 The 3-4-2-1 has reinvigorated Arsenal’s attack
Since the inspired switch to three at the back, the Gunners have looked like a different team. All of a sudden, Özil is finding space between the lines, Alexis is making runs in behind and Alex Oxlade-Chamberlain is dribbling past people for fun. The new formation allows Arsenal’s two star players, Özil and Alexis, the freedom in the middle whilst the rest of the midfield track back and cover space.
It’s perfect, because everybody is allowed to play to their strengths.
The formation also ensures Arsenal can stretch the pitch at all times whilst simultaneously overloading the middle. As they’ve only played a few games with the new system, there’s not much for José Mourinho to scout as Arsenal themselves are still getting used to the tactic.
It’ll be hard for United to prepare for this game, as this is an Arsenal side they’re not used to. In this game, unpredictability will be Arsenal’s most valuable asset.