Riccardo Calafiori, making his full debut, whipped in a stunning equaliser from distance, before the familiar sight of Gabriel rising highest at the back post to head home from a corner put the Gunners in front. Mikel Arteta’s side enjoyed their best spell of the match before half-time, but suffered a huge blow seconds before the break. Trossard, already on a yellow card, conceded a free-kick and booted the ball up the pitch, and he was duly sent off for delaying the restart.
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