Tim Duncan trained for the Olympics as a teenager. He was one of the best young swimmers in the country. His sister Tricia had already swum at the 1988 Olympics. Then Hurricane Hugo hit St. Croix in 1989 and destroyed the island's only Olympic-size pool. The only place left to train was the open ocean, and Duncan was terrified of sharks. He quit swimming, picked up basketball at 14, and became a five-time NBA champion.
