He has always been top-drawer in terms of his dynamism and dribbling. The difference that has been noticeable, and will be a factor going forward, is that he has a runner outside and inside of him. Last season, it would often be the case that he would do his thing and others would wait for him to complete his movement. Now, Ait-Nouri attacks the space outside, and Reijnders and Marmoush attack it inside. That is difficult for any defence to cope with.