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New Arsenal boss Mikel Arteta has been so impressed by the way that Kieran Tierney trains, according to ESPN.

Tierney has shown real aggression in Arsenal training, and his actions were causing annoyance among his teammates when he first arrived at the club.

Unai Emery’s sessions were said to be fairly light, with Arsenal players encouraged to take it easy in challenges.

Best XI From Countries Outside FIFA’s Top 50 National Teams

Best XI From Countries Outside FIFA’s Top 50 National Teams

Tierney’s teammates at Arsenal even reportedly told him to ease up when Emery was in charge at the Emirates Stadium. 

But Arteta has preferred a more full-blooded approach to practice, and Tierney’s attitude has caught the eye of the Spanish boss.

Tierney has been a mainstay in Arsenal’s side since the restart, with the left-back impressing.

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The former Celtic man struggled with injury soon after joining the Gunners, but his performances in recent weeks have proven his quality.

Tierney now looks almost certain to start when Arsenal take on Tottenham Hotspur in the North London derby, and his tenacious tackling will certainly be encouraged on that occasion.  

In other news, Report: Arsenal talent Tolaji Bola on trial with Sheffield Wednesday