Shun Fujimoto broke his kneecap midway through the competition. With Japan needing his points to win the gold and upset the Russians, Fujimoto completed a brilliant performance on the rings

In the 1976 Olympics, Japanese gymnast Shun Fujimoto broke his kneecap midway through the competition. With Japan needing his points to win the gold and upset the Russians, Fujimoto completed a brilliant performance on the rings, his last event, by landing a triple-somersault dismount. The pain was excruciating, and the impact dislocated the broken kneecap and tore ligaments in his right leg. Fujimoto willed himself into the traditional finishing pose, and his 9.7 gave his team the gold.

Years later, Fujimoto, whose knee still hurts, was asked whether he would do it all again. He said bluntly, "No, I would not." (ESPN)