Diana Nyad : Ex-NFL player who swam 16 hours to safety showed smarts , determination , courage . She says a well-prepared long-distance swimmer would find it difficult , especially facing sharks . Nyad : I was in the water for about four and half hours. NFLers know about endurance . He was a Dolphin .
Diana Nyad : Ex-NFL player who swam 16 hours to safety showed smarts , determination , courage . She says a well-prepared long-distance swimmer would find it difficult , especially facing sharks . Nyad : He pictured his family to motivate him . NFLers know about endurance . He was a Dolphin .