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Arsenal head coach Unai Emery has confirmed what he told Bosnian defender Sead Kolasinac after his mistake led to Manchester United's equaliser in the 2-2 draw at Old Trafford this evening (Wednesday).

Just moments after the restart following Arsenal's second goal, the left-back inadvertently knocked the ball into the path of Jesse Lingard for the Manchester United man to equalise, as the Red Devils came from behind for the second time in the game.

It was a costly mistake in the context of the game, as Arsenal lost the chance to claim all three points at Old Trafford, having twice been pegged back after taking the lead through Shkodran Mustafi and Alexandre Lacazette.

But Emery has revealed what he said to Kolasinac after the game, with the 25-year-old walking off the field looking despondent after his error.

"[I am] Not frustrated," he said, speaking to BT Sport after the match.

"For example he was coming in at the end of the match, Sead Kolasinac, with his head looking down, but I said to him, Sead you had a very good match, offensively you give us a lot of circumstances.

"It can happen this action in defence, but you need to continue and most of all, be positive and learn from this action."

The result leaves Arsenal fifth in the Premier League table with 31 points from 15 games, with the Gunners extending their unbeaten run to 20 games in all competitions.

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