You're probably not familiar with the steeplechase, but it's an incredibly difficult event.

It involves running and jumping -- repeatedly and over long distances. Because of this, there are occasionally nasty falls or missed obstacles.

One such fall happened on Wednesday, when Uganda's Jacob Araptany tripped and slammed his head into the barrier that the runners are supposed to jump over.

Araptany was OK after the scary fall, but was forced to withdraw from the race. Kenya's Conseslus Kirupto wound up taking the gold, while American Evan Jager won silver. Another Kenyan, Ezekiel Kemboi finished with the bronze.

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