Lukas Krpalek grabbed the Czech Republic's first-ever Olympic medal in judo, while U.S. swimmer Michael Phelps won his 13th individual gold medal. Here are the Day 6 highlights from the Rio Games.
Rio Olympics, Day 6
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Rafael Nadal of Spain serves during a warm-up session before his tennis match against Gilles Simon of France.
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Spanish and Hungarian players start their preliminary-round water polo match.
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U.S. gymnasts Simone Biles (left) and Aly Raisman celebrate winning gold and silver respectively in the women's individual all-around final.
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(Left to right:) Teams from the United States, the Netherlands, and New Zealand row in a men's coxed-eight race.