Ledley was played in an unfamiliar role at left-back during his first month at Celtic, a position he had only previously played in once or twice. Despite playing in an unfamiliar position, he concentrated on establishing himself in his new team, stating "...if I am told to do a job for my team, I try to do it to the best of my ability", and he scored his first goal for Celtic against St Mirren in a 4–0 home victory in the SPL on 22 August 2010. By the end of August, the arrival of Honduran left-back Emilio Izaguirre saw Ledley return to his more familiar midfield role.