Celtic's Alistair Johnston experienced discomfort during his substitute appearance against Hibernian, leading to his early exit after 21 minutes. Manager Martin O'Neill noted that Johnston has a history of hamstring issues, and further evaluation will be needed to determine the extent of the problem.
Monitor Johnston's recovery closely; his absence could impact Celtic's defensive strategy ahead of the upcoming matches. With Dundee United next, O'Neill may need to adjust tactics if Johnston is sidelined again. Carter-Vickers' return is a silver lining for the squad.