Thought this was very interesting. I suspect a lot of people don't have the opportunity to become a full-time sportsman, so to then give that opportunity up and follow God's will is an interesting story to read.
http://www.desiringgod.org/blog/posts/why-i-said-no-to-the-nfl
http://www.desiringgod.org/blog/posts/why-i-said-no-to-the-nfl