Arsenal failed to reclaim fourth spot on the Premier League table after suffering a 2-0 defeat away to Newcastle United on Monday evening.
Mikel Arteta's men came into the clash with nothing but three points on their mind after they slipped to fifth spot following Tottenham Hotspur's win over Burnley on Sunday.
The hosts made a promising start to the encounter and put the Arsenal defence under pressure early on, much to the delight of the home supporters.
Newcastle were nearly gifted the opening goal inside 10 minutes when Callum Wilson intercepted Aaron Ramsdale's poor pass out, but the striker's effort was deflected away from goal.
Ramsdale was called into action on 36 minutes after pulling off a fine save to keep out Allan Saint-Maximin's powerful strike from the edge of the box.
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The Gunners shot-stopper was beaten 10 minutes into the second half, as Joelinton sent a cross into the box looking for Callum Wilson, but Ben Whit diverted the ball into his own net.
Newcastle had a couple more chances to put the game to bed after 70 minutes, with Wilson sending a first-time strike just wide via a deflection while Jacob Murphy failed to beat Ramsdale from close range after a swift counter.
The Magpies did go on to bag a second goal with eight minutes left on the clock through Bruno Guimaraes' first-time finish after Ramsdale had rushed off his line to deny Wilson.
The defeat leaves Arsenal in fifth place heading into the final game of the season and they will need Tottenham Hotspur to lose against Norwich City on Sunday to stand any chance of qualifying for the UEFA Champions League.