The Gunners went into tonight’s clash at Selhurst Park having drawn against top-four rivals Manchester City and comfortably seen off West Ham.
Arsenal beat the Hammers 3-0 on Wednesday at the Emirates, suggesting they were up for the fight.
But a fourth successive Premier League away defeat at Palace means they are still well in trouble.
Theo Walcott felt Arsenal had recovered form before the Crystal Palace defeat
We thought we had bounced back from that bad patch
Arsene Wenger’s men were beaten 3-0 by the relegation battlers as the players failed to win many key battles on the pitch.
Walcott was captain for the night and apologised for the showing.
"We thought we had bounced back from that bad patch with the draw against Manchester City and win against West Ham,” Walcott said.
“It doesn't look like it after this.
Arsenal player ratings against Crystal Palace Mon, April 10, 2017
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"We don't go out there to lose games, we work the best we can. Tonight it didn't happen. We can only apologise.”
Arsenal’s squad must now bounce back when they travel to Middlesbrough next Monday.
In the meantime, questions will be raised over Wenger’s future with no announcement made yet on a new contract.