Xhaka is putting his elevated performances down to Emery.
Arsenal midfielder Granit Xhaka says his improved form is solely down to the arrival of "freak" Unai Emery.
The Switzerland international, who joined the Gunners from Borussia Monchengladbach back in 2016 in a deal, is convinced he is in his best form of his career at the Emirates.
"It's definitely my best season so far," he told Aargauer Zeitung. "Without doubt, I think I've taken another step forward.
"It's the best I've felt at Arsenal since I came to the club and the coach has had an enormous influence.
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"He prepares us all and we have a plan. We know how to do it with the ball and without the ball. We know how and when to stand where.
"Emery is like Lucien Favre [whom Xhaka played for at Gladbach], a freak who pushes us back and forth, 10 times, until everyone understands.
"I never had contact with him [Emery] until after the World Cup. When I got back to training, the first thing he told me was: 'Granit, you're one of my five captains.'
"I'm at one of the top 10 clubs in the world, so that makes you proud and gives you confidence.
"It was a great sign of the club to extend my contract until 2023. For me that's a huge sign of appreciation. I knew then I was very important to the club."