The north London club moved back to the top of the table with a comfortable win over the Eagles.
Two goal from England wide man Alex Oxlade-Chamberlain sent Arsenal back to the top of the Premier League table following a comfortable 2-0 win over London rivals Crystal Palace at the Emirates on Sunday afternoon.
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The winger, who has only just returned to action for the north London club following a long layoff with a knee injury, netted both of his strikes in the second half to send the home side two points clear of second-placed Manchester City, albeit having played a game more than their rivals.
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