When I was 24 years old, I thought I had blown out my knee. I was playing in a basketball game in a rec league at DePaul University. During one play, I went up to dunk the ball and got hit in the chest by a defender. I reached to grab the rib to regain my balance, but the hit knocked me hard enough that I couldn’t hang on. I slipped, fell backwards, and stuck my leg out to land. The problem was that I stuck my leg out completely straight and my body was falling overtop of it at a weird angle.