Of all the incredible things Tim Duncan did throughout his 19-year NBA career (and believe me, there were plenty) maybe the most incredible of all happened before he actually played an NBA game.
It came during his four years at Wake Forest where... (errr... record scratch...)... well, actually in a lot of ways that right there, might be the most incredible part of Duncan's career altogether. The fact that he played four years of college basketball at all makes him an outlier of the highest kind. The fact that he did it when he could have easily left after his sophomore or junior years makes it all the more amazing.