This summer, Juancho Hernangomez followed through on a promise he made to himself 13 years ago. The now 24-year-old remembers September, 2006 well. Hernangomez was 11-years-old, already in love with the game that he’d later make a living playing and passionately cheering on La Roja as Spain was in hot pursuit of their first World Cup gold medal. Spain was…