Miguel Duran Navia of Spain dived in too early in his preliminary heat of the 400-meter freestyle, triggering an automatic disqualification.
He slapped the water and hung his head on the lane line, realizing he was out of Saturday's heats. He sat on the edge of the pool, his hand covering his mouth.
Duran appeared to be crying as he picked up his clothing and walked off the deck while fans applauded in sympathy.
Moments later, Duran reappeared and took his position on the starting block, having been given a reprieve.
He finished seventh in his heat.
Copyright Rio2016
