Japanese gymnast Kohei Uchimura -- the reigning Olympic champion -- competes on the parallel bars during the team all-around event. Japan won the gold.
Sprinter Usain Bolt, center, dances the samba during a news conference for Puma and the Jamaican Olympic Association. The world's fastest man will be defending his 100-meter title later in the Games.
Hungary's Katinka Hosszu celebrates after winning the 100-meter backstroke. It was her second gold medal in Rio.
Hong Kong's Wong Chun Ting, left, plays Japan's Koki Niwa in table tennis. Niwa won to clinch a spot in the quarterfinals.
New Zealand's rugby team performs a haka dance for their supporters after the final.
Synchronized divers Chen Aisen and Lin Yue won the 10-meter platform event for China. China has won the event in the past four Olympics.
Judoka Rafaela Silva cries on the medal stand after she won Brazil's first gold at the Rio Games. She defeated Dorjsurengiin Sumiyaa in the final of the 57-kilogram weight class.