I am taking this idea from Mike and Mike. This morning they were discussing who are the greatest athletes, in any sport, that are 25 and younger. Now, the premise isn't who has accomplished more up until this point in their careers but who will be the best in 10 years(2025).
Unlike the other 3 threads I made, this is for all sports.
So, do you put Missy Franklin in yours? Conor McDavid(or another NHL player?) Spieth? Lydia Ko, who has 7 LPGA wins and is only 18?