🚨 Kieran Tierney faces up to three months on the sidelines after picking up a hamstring injury during Real Sociedad’s 3-0 Basque derby win against Athletic Club on Saturday, with it understood that surgery is a possibility. [@FrazFletcher] #afc https://t.co/9cbbaelJl2

— afcstuff (@afcstuff) October 2, 2023