Rio Olympics 2016: Highlights of day 4

India's Akasdeep and Argentina's Captain Pedro Ibarra during the qualifying round match against Argentina at the Summer Olympic 2016 at Rio de Janeiro, Brazil. Photo: AP | PTI

India's men's hockey team play against Argentina at Rio Olympics 2016. Photo: AP | PTI

United States' Townley Haas, left, Ryan Lochte, center, and Conor Dwyer celebrate as Michael Phelps, in the pool, finishes to win the gold medal in the men's 4x200-meter freestyle final at Rio Olympics. Photo: AP | PTI

Winner United States' Michael Phelps celebrates with his gold medal after the men's 200-meter butterfly during the swimming competitions at the 2016 Summer Olympics. Photo: AP | PTI

India's Vikas Krishan (red) fights Charles Albert Shone Conwell of USA in Preliminaries Men's Middle (75Kg) during the Qualifing round match in Summer Olympics in Rio de Janeiro, Brazil, Tuesday. Vikas Krishnan beat Albert Shone Conwell. Photo: AP | PTI

Union Sport Minister Vijay Goyal congratulating Indian Boxer Vikas Krishan Yadav after his victory over Charles Albert Shone Conwell of USA in the men’ s Middleweight (75kg) category and entering in to Rio Olympic pre-quarterfinals at Rio de Janeiro, Brazil. Photo: AP | PTI