Quote Originally Posted by sharpe1027 View Post
High School players are also something like 6 times more likely to play in the MLB (0.5%) than in the NFL (0.08%).

https://www.ncaa.org/sites/default/f...Update2013.pdf

I imagine that the longevity of careers and lack of severe brain injuries also is pretty one-sided.

Then again, 99% will not make either league and even fewer will earn much more than the minimum, so play what you enjoy.
I think it is measuring "professional", not MLB or NFL. There aren't a lot of professional opportunities in football other than the NFL. Hockey, baseball and basketball have their "minor leagues" as well as professional leagues in other countries.