Novak Djokovic shook his head and placed his palm over welling eyes on his way to the locker room after a first-round Olympic exit.
Majlinda Kelmendi won Kosovo's first Olympic gold medal at its first Games, putting her fledgling country on the sporting map and sending a message of hope to its new generation.
Holding tears in her eyes, a sad Li Yajun was determined to get rid of the bad memories in Rio and trained harder for the next Olympic Games four years later.
Michael Phelps made all the difference as he won the 19th Olympic gold medal and helped the U.S. men's team to victory in the 4x100 metres freestyle relay.
Sun Yang qualified fastest for the men's 200m freestyle final at the Rio Olympics, easily winning his semifinal on Sunday.
Three-time Olympic women's doubles champions Serena and Venus Williams crashed out of the Rio Games tournament in the first round on Sunday as the American sisters' unbeaten run dating back to Sydney 2000 came to a surprising end.
On April 6, 1896 - 1,500 years after being banned by Roman Emperor Theodosius I - the Olympic Games were reborn in Athens. At the opening of the first modern Games, King Georgios I of Greece welcomed 280 participants from 13 nations to compete in 43 events covering nine sports: track and field, swimming, gymnastics, cycling, wrestling, weightlifting, fencing, shooting, and tennis. The 2016 Rio Olympics, which opened on the weekend, involves more than 11,000 athletes from 207 nations and territories, competing in 28 sports across 42 disciplines.
Table tennis powerhouse China opened their Rio Olympic journey in style on Sunday with both Ding Ning and Ma Long winning in straight sets, while Japan's top woman Kasumi Ishikawa and Chinese Taipei's number one Chuang Chih-Yuan suffered third round exits.
The smiles or tears on the faces of these swimmers will be remembered and shared by the whole world as they smash world records of the swimming competitions at Rio Olympics.
At the Maria Lenk Aquatics Center at Rio's Olympic Park that was named to memorialize Brazil's greatest female swimmer, Chinese diving diva Wu Minxia cemented her name in Olympic history on Sunday (Monday in Beijing).
Agnieszka Radwanska, a player not known for outbursts on court, had plenty of good reasons to take out her frustrations on her racket in her first-round Olympic match on Saturday.