Arsenal boss Unai Emery has revealed he left Kieran Tierney out of his side's win over Bournemouth yesterday because he's not quite at 100 per cent.

The left-back started for the Gunners against Standard Liege on Thursday evening in the Europa League.

He's also played in the Carabao Cup against Nottingham Forest and in an under 23s clash with Wolves earlier this season.

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Tierney, 22, continues his return to fitness following a long-term hernia injury and a thigh problem.

And Emery explained how he won't rush the player back into action for the sake of it.

In the wake of their 1-0 win over the Cherries at The Emirates Stadium, Emery said: "It’s one process with them. 

"Kieran and Rob [Holding] are closer to playing. 

"I think Rob Holding can play 90 minutes with a good performance. Now we are also working with David Luiz and Sokratis, but really, I am very happy. 

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"He is going to have a chance to play a lot of matches. Kieran Tierney is closer to us, he played on Thursday and today he was on the bench if we needed him. 

"Hector Bellerin needs a little more time, more matches and more training. This international break is going to be important for him. 

"I think he will be closer to starting for us in the next matches in the Premier League."