Oddly Horrifying on Instagram: "At the 1988 Olympic trials, Greg Louganis attempted one of the most difficult dives in the sport — a reverse two-and-a-half somersault. But in a split second, he misjudged the rotation and struck his head hard against the springboard mid-air. The crack echoed through the arena as blood spread across the pool and the crowd fell silent, fearing the worst. Amazingly, after receiving stitches, Louganis returned just minutes later and completed the same dive almost per