Mikel Arteta's side got back to winning ways in the Premier League as they thumped five past Palace to move up to third in the table.
Arsenal smashed Crystal Palace 5-0 on Saturday, ending a four-game winless run in all competitions.
Gabriel Magalhaes opened the scoring for the Gunners with a header from Declan Rice's corner and the Brazilian thought he had bagged his second of the game eight minutes before half-time, but his header went in off the back of Palace keeper Dean Henderson and was eventually given as an own goal.
Leandro Trossard added a third for the hosts after the interval, finishing off a rapid counter attack having been played in by Gabriel Jesus.
And then Gabriel Martinelli put the gloss on a fine afternoon for Arsenal, coming off the bench to score twice in stoppage time to move Mikel Arteta's side third in the Premier League, two points behind leaders Liverpool having played a game more.
GOAL rates Arsenal's players from Emirates Stadium…
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David Raya (7/10):
Good day's work for the keeper. There was one poor clearance but he made amends straight away by making a sharp diving save. Produced a superb throw to Jesus to start the breakaway for Trossard's goal.
Ben White (6/10):
Played a couple of nice defence-splitting passes to open up the Palace backline in the first half.
William Saliba (7/10):
Good battle with Jean-Philippe Mateta. Calm and composed as always. Did one lovely turn that drew gasps from the crowd.
Gabriel Magalhaes (8/10):
Showed his quality from set pieces yet again. Capped an excellent display with two fine headers, even if the second did eventually go down as an own goal.
Oleksandr Zinchenko (7/10):
Always involved. Arteta will be happy to have him back after his injury lay-off.
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Declan Rice (7/10):
Lovely corner to set up the first goal. Couple of loose passes, but aside from that a typically solid display. Limped off towards the end, which will be a bit of a worry to Arteta.
Martin Odegaard (7/10):
Led the press as always and worked hard, but was unable to really hurt Palace from an attacking point of view.
Kai Havertz (6/10):
On the fringes of things. Had a couple of nice moments but was never a major threat.
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Bukayo Saka (6/10):
Palace coped with him quite well. Saw plenty of the ball but not in areas that caused the visitors too many problems.
Gabriel Jesus (7/10):
Link-up play was nice and got his reward when he set up Trossard for the third goal.
Leandro Trossard (7/10):
Had one great chance in the second half which he miscued but he made amends with a fabulous turn and finish to make it 3-0.
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Gabriel Martinelli (8/10):
Very bright cameo which he rounded off with two fines goals in stoppage time.
Emile Smith Rowe (6/10):
Got a huge cheer when he came on. Neat and tidy.
Jorginho (7/10):
Kept things ticking over after replacing Rice. Lovely assist for Martinelli's second.
Eddie Nketiah (6/10):
On for the last 10 minutes and got an assist with a nice pass for Martinelli to make it 4-0.
Jakub Kiwior (N/A):
Replaced the injured Gabriel for the closing stages.
Mikel Arteta (7/10):
The Arsenal boss will be delighted to have seen his side get back to winning ways.