Mesut Ozil did not hold back his anger during the Everton defeat (0-1).
Everton boss Marco Silva and Unai Emery both were involved in a heated row after Shkodran Mustafi wiped out Dominic Calvert-Lewin on the touchline. The German centre-back received a caution over the foul, with both dugouts in disagreement over the incident.
Ozil then was seen launching his coat towards the Everton staff.
Following the game, Toffees boss Silva said: "I didn’t notice it (the coat)”.
However, we don't know for sure was that action towards Everton staff, or towards the Gunner's boss Unai Emery, who decided to bring Alex Iwobi on in his place.