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Video - Cejudo wins 55kg gold
United States wrestler Henry Cejudo, competing in only his second international tournament, won gold in the men's 55kg freestyle event.
Cejudo, the Pan-American champion, beat Asian champion Tomohiro Matsunaga of Japan into silver, with a score of 5-2.
The 21-year-old, who came 31st in last year's World Championships, continued the US's record of winning nine consecutive Olympic freestyle golds.
Russia's Besik Kudukhov and Bulgaria's Radoslav Velikov each took bronze.