Mikel Arteta demanded a response from his side ahead of the encounter with the Gunners' having endured an almighty setback in their pursuit of a Champions League return following their 3-0 thumping at the hands of Crystal Palace at Selhurst Park on Monday night.
However, the Spaniard's side suffered something of a hangover. Having created little during a cagey and cautious opening, Arsenal were punished shortly before the half-hour mark.
Enock Mwepu latched on to a clearance from Lewis Dunk as he exploited some poor positional play from makeshift left-back Granit Xhaka.The Zambian midfielder then saw his fine cut-back clinically dispatched by Trossard to compound the Gunners woes.
The outstanding Mwepu then drilled home a second from the edge of the area following a free-flowing Brighton move to end the Seagulls run of seven matches without a win and pile the misery on Arsenal, who struck a late consolation through Martin Odegaard.On a miserable afternoon for the Gunners, which saw them hand the top-four advantage to their fierce rivals Tottenham, Daily Star Sport takes a look at where it all went wrong for Arsenal...With first-choice left-back Kieran Tierney ruled out for the remainder of the season, Nuno Tavares deputised at Selhurst Park on Monday night, but it's fair to say he flattered to deceive.
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