Personalized 10th Birthday Football Sports Boys Youth Long Sleeve T-Shirt. 10th Birthday Youth Long Sleeve T-Shirt - White has big football sports ball with number 10 and being ten is a ball slogan for boys who love football. youth long sleeve t-shirt. Shoulder-to-shoulder taping. Youth: S(6/8), M(10/12), L(14/16), XL(18/20)