Joel Embiid and Blake Griffin had terrible injuries early in their careers and came back really strong and have been consistent All-Stars in the NBA since then.
BYU and New Orleans fans can look at Taysom Hill, who could not stop getting injured in college, and is now doing great things while playing full speed in the NFL.
I definitely hope the same for Zion Williamson. He may or may not post monster stats the way some people are expecting, but he will definitely be entertaining to watch.