2016 Rio Olympics - Athletics - Semifinal - Women's 100m Hurdles Semifinals - Olympic Stadium - Rio de Janeiro, Brazil - 17/08/2016. Brianna Rollins (USA) of USA competes. REUTERS/Lucy Nicholson

2016 Rio Olympics - Basketball - Quarterfinal - Men's Quarterfinal USA v Argentina - Carioca Arena 1 - Rio de Janeiro, Brazil - 17/8/2016. Team Argentina fans, with one Team USA fan amongst them, cheer during the game. REUTERS/Mariana Bazo

2016 Rio Olympics - Volleyball Men's Quarterfinals - USA v Poland - Maracanazinho - Rio de Janeiro, Brazil - 17/08/2016. Mateusz Mika (POL) of Poland (L) spikes the ball against Matt Anderson (USA) of USA, Maxwell Holt (USA) of USA, Micah Christenson (USA) of USA and Aaron Russell (USA) of USA. REUTERS/Yves Herman

2016 Rio Olympics - Volleyball Men's Quarterfinals - USA v Poland - Maracanazinho - Rio de Janeiro, Brazil - 17/08/2016. Matt Anderson (USA) of USA (L) spikes the ball against Bartosz Kurek (POL) of Poland and Mateusz Bieniek (POL) of Poland. REUTERS/Yves Herman

2016 Rio Olympics - Volleyball Men's Quarterfinals - USA v Poland - Maracanazinho - Rio de Janeiro, Brazil - 17/08/2016. USA's (USA) players celebrate winning their match. REUTERS/Yves Herman

2016 Rio Olympics - Volleyball Men's Quarterfinals - USA v Poland - Maracanazinho - Rio de Janeiro, Brazil - 17/08/2016. Matt Anderson (USA) of USA, Micah Christenson (USA) of USA, Erik Shoji (USA) of USA, Taylor Sander (USA) of USA, and Aaron Russell (USA) of USA react. REUTERS/Yves Herman TPX IMAGES OF THE DAY.

2016 Rio Olympics - Water Polo - Semifinal - Women's Semifinal Russia v Italy - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - 17/08/2016. Italian players react after their team's victory over Russia. REUTERS/Athit Perawongmetha

2016 Rio Olympics - Water Polo - Semifinal - Women's Semifinal Russia v Italy - Olympic Aquatics Stadium - Rio de Janeiro, Brazil - 17/08/2016. Teresa Frassinetti (ITA) of Italy during the game. REUTERS/Laszlo Balogh