Arsenal's Premier League title hopes suffered a potentially fatal blow after they lost 3-0 at home to Brighton on Sunday.
Julio Enciso's 51st-minute header broke the deadlock before former Brighton striker Leandro Trossard gifted Deniz Undav the chance to double their lead on 86 minutes. As the game went into stoppage-time, Pervis Estupinan added a third as he turned home the rebound after Gunners goalkeeper Aaron Ramsdale saved Undav's long-range effort.
Roberto De Zerbi's side earned a precious win which keeps their pursuit of European qualification on track while leaving the Gunners' chances of toppling Manchester City hanging by a thread.