When you think of the average American 15-year-old, you think of someone who attends concerts, goes on dates, and hangs out with friends. Some take part in high school sports and others play in traveling teams, but it’s rare that a teenager chooses to spend the majority of his or her time practicing. Photos Provided by the Mujic Family Even rarer still is to see a 15-year old playing in a semi-professional team. However, Frankie Mujic is no ordinary teenager. In