4 step explanation of how Arsenal's 3-4-3 formation under Unai Emery works

#3 Overloads on the flanks

When Conte introduced the 3-4-3 in England, many fans were skeptical over whether the formation could work. But seeing how a 3 man defence prevailed throughout the league, the formation ended up being a huge success.

The main reason behind this success is that the midfielder in a more advanced position is not always able to track back. This left the fullbacks occupied with two Chelsea players on their side. This advantage in numbers allowed Chelsea to play quick football via the width, and provide delivery to the dangerous Diego Costa.

This shows the spaces Mkhitaryan and Iwobi occupy to attract the opposition's full-backs

Emery's 3-4-3 has a similar effect on 4-man-defences. With the pace of Kolasinac and Bellerin, Arsenal is easily able to move the ball up and down the flanks. Emery has used Alex Iwobi and Mkhitaryan to great effect here, wherein they occupy the half spaces between the fullback and the centre back.

This allows them to connect with at least 4 or 5 players at one time, and distract the opposition's full-backs, giving space to their own wing backs. While Mkhitaryan has struggled with form, Iwobi has easily adapted to this role, and has been a prolific player for Arsenal this season.