Once upon a time, our now veteran superstars -- Chris Paul and Blake Griffin -- were just fresh faces playing in the NBA's summer league. A lot has changed since then (namely that they both went from prospects to stars), but while looking back at their beginnings, it should have been clear that Paul and Griffin were destined for greatness.
Exhibit A: Chris Paul's Highlight Tape
Exhibit B: Blake Griffin (rather calmly) holds up his MVP trophy
Clippers (@LAClippers) July 10, 2015
Unfortunately, Blake would not be able to use this momentum to spark his career due to an injury during the preseason. He did, of course, end up being quite fine when he finally got his chance to play a "real" game.
Both would end up becoming Rookie of the Year -- but it all started in Summer League.