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PARIS, FRANCE - SEPTEMBER 13:Head coach Unai Emery of Paris Saint-Germain react with head coach Arsene Wenger of Arsenal FC during the UEFA Champions League group A between Paris Saint-Germain and Arsenal FC at Parc Des Princes on september 13, 2016 in Paris, France. (Photo by Xavier Laine/Getty Images)

PARIS, FRANCE - SEPTEMBER 13:Head coach Unai Emery of Paris Saint-Germain react with head coach Arsene Wenger of Arsenal FC during the UEFA Champions League group A between Paris Saint-Germain and Arsenal FC at Parc Des Princes on september 13, 2016 in Paris, France.  (Photo by Xavier Laine/Getty Images)