It is never easy competing in any competition, especially in the Olympics games, however, the pressure is even more intense when you're competing on home soil and it can take its toll.
And that pressure clearly got to Brazilian diver Ian Matos, who was competing in the three-meter synchronised dive along with his partner, Luiz Felipe Outerelo.
Under the lights of the outdoor arena, in front of your compatriots and hoping to secure a medal for your country, it was the 27-year-old's time to deliver - at least that's what he hoped.
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However, that was not how it worked out. As the duo leaped into the air and brought their knees into their chest, Matos appeared to knee himself in the face before losing all stability and swinging both his arms and legs.
For a synchronised dive, it was anything but. His legs were out of control and the poor execution resulted in a lot of splash, which also didn't help for what was always going to be a low score.
Matos and Outerelo were subsequently scored a lowly 28.80, and left the former crying in the showers, knowing that his one mistake was likely to cost him and his partner any chance of a medal.
The Brazilians finished, unsurprisingly, last, behind gold medalists Great Britain by 121.71 and still 52.56 behind seventh-placed Russia.
Matos' nightmare will definitely be one he will be hoping to forget quickly, although many took to Twitter to enjoy the moment at his expense.
However, the incident also left many fans feeling sorry for the Brazilian. Although, even without making the mistake, Brazil's chances were slim.
Meanwhile, swimmers were forced to compete in a swampy green pool, after an apparent shortage of chemicals to treat the pool. However, it was safe for the competitors to continue and no postponement of events was caused.
Can Brazil, as hosts, finish top of the medal table this summer? Have your say in the comment box below.