Brighton & Hove Albion handed Arsenal a major setback on Saturday after cruising to a convincing 3-0 victory over the defending Premier League champions at the Amex Stadium.
The Seagulls came into the encounter with confidence and quickly put Arsenal under pressure, eventually taking the lead through Pascal Gross in the 31st minute.
Brighton continued to dominate as Arsenal struggled to find their rhythm and create clear chances in the final third.
The hosts doubled their advantage shortly before half-time, with Charalampos Kostoulas finding the back of the net to send Brighton into the break with a comfortable two-goal lead.
Arsenal were expected to respond after the restart, but Brighton remained in control and extended their advantage in the 57th minute when Chema Andrés scored the third goal.
The Gunners were unable to mount a comeback as Brighton comfortably protected their lead until the final whistle.
The defeat ended Arsenal’s perfect start to their Premier League campaign and handed Mikel Arteta’s side a heavy blow, while Brighton secured one of their most impressive victories of the season.
For Fabian Hürzeler’s men, the result will further boost confidence after their strong start to the campaign and underline their ability to compete with the league’s top sides.