David Raya has been outstanding for this season. But the Spanish keeper almost gifted Chelsea an undeserved goal in the London derby at the Emirates Stadium on Sunday.

dominated the early exchanges and were unlucky not to get a penalty when Marc Cucurella appeared to handle inside his own box. His arm was deemed to have , however.

did take the lead when Mikel Merino headed home from a corner, but thereafter the Gunners failed to build on their lead. They let Chelsea come back into the half and almost handed the Blues an equaliser.

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Having seen opposite number Robert Sanchez make a number of mistakes at the other end of the field, the poor goalkeeping was catching. Cucurella smashed a volley goalwards as a loose ball spun up towards him.

The volley looked comfortable for Raya, who got in position to claim it low down, but he got his positioning all wrong and the ball bobbled away from him and trickled towards goal.

Luckily for the , it trickled wide of the far post and you could see frm the look on Raya's face he was a very relieved man. And he immediately gave his verdict on the mistake too.

could be seen on Sky Sports' coverage saying "wow" after the ball had gone out for a corner kick.

Victory for Arsenal would see them open up a four-point gap to third-placed Nottingham Forest once more, while they would cut Liverpool's lead at the top of the table to 12 points.