Kieran Tierney has done everything for Celtic. The 20-year-old signed with his boyhood club as an adolescent and worked his way up through the youth development program. During that time, he served as a ballboy at Celtic Park, in Glasgow’s East End.
Over the past three-plus seasons, Tierney has forced his way into the Hoops’ starting XI at left back. And now, he’s added to his growing legend with a performance for the ages during Celtic’s League Cup knockout fixture against Kilmarnock.