Decided to post this one because of what it demonstrates (to me anyway) over it being a great picture. What this shows is a young athlete using proper mechanics as he gets ready for a throw. These mechanics have come from hard work and instruction and it's easy to see these sorts of details among kids and even more seasoned athletes. Maybe that's why I'm drawn to sports photography - because I see in every picture the hours, days, months, and years of practice and the picture serves as "Proof."