Isaiah Austin left Baylor to declare for this year's NBA Draft, but his basketball career will sadly end there. The center was diagnosed with a genetic disorder that won't allow him to continue playing basketball.
Genetic testing for the draft discovered that Austin had Marfan syndrome, a disorder that affects connective tissue in the body. You can read more on it here, but basically, if Austin's heart experienced the rigors of an NBA season, he could die. He can no longer play basketball competitively.
Austin did a heartbreaking interview with Holly Rowe, which you can watch here, and also mentioned his diagnosis on Twitter.