Why Kieran Tierney is so important to Mikel Arteta’s Arsenal

He may not have played too many games for the London club, but Kieran Tierney has already established himself as a pivotal member of Mikel Arteta’s Arsenal side in the English Premier League. In this week’s video we take a look at where the former Celtic left back fits into Arsenal’s starting XI and why his talents are so desperately needed in defence...