Arsenal defender Kieran Tierney has been speaking about a change at the club that may have ultimately led to his exit this season. Tierney is currently on loan at Real Sociedad in La Liga, where he’s enjoyed some strong performances amid injury disruption. The Scot is currently unavailable with a hamstring issue, continuing his bad run of luck with injuries in North London. That being said, 26-year-old Tierney does still have two more years on his Arsenal contract, which runs until the summer of 2026. And considering just how imperious the defender has looked on Europe’s biggest stages at time…