2016 Rio Olympics - Volleyball - Women's Semifinals Serbia v USA - Maracanazinho - Rio de Janeiro, Brazil - 18/08/2016. Brankica Mihajlovic (SRB) of Serbia hugs Tijana Boskovic (SRB) of Serbia. REUTERS/Yves Herman

2016 Rio Olympics - Volleyball - Women's Semifinals Serbia v USA - Maracanazinho - Rio de Janeiro, Brazil - 18/08/2016. Silvija Popovic (SRB) of Serbia and Brankica Mihajlovic (SRB) of Serbia celebrate a point. REUTERS/Yves Herman

2016 Rio Olympics - Volleyball - Women's Semifinals Serbia v USA - Maracanazinho - Rio de Janeiro, Brazil - 18/08/2016. Serbian team players celebrate defeating the USA. REUTERS/Yves Herman TPX IMAGES OF THE DAY

2016 Rio Olympics - Volleyball - Women's Semifinals Serbia v USA - Maracanazinho - Rio de Janeiro, Brazil - 18/08/2016. Kimberly Hill (USA) of USA reacts after losing to Serbia. REUTERS/Yves Herman

Olympic and Paralympic track star Oscar Pistorius leaves court after appearing for the 2013 killing of his girlfriend Reeva Steenkamp in the North Gauteng High Court in Pretoria, South Africa, June 14, 2016. REUTERS/Siphiwe Sibeko/Files

Former National Football League star Darren Sharper appears at the Clara Shortridge Foltz Criminal Justice Center in Los Angeles, California, U.S. on March 23, 2015. REUTERS/Nick Ut/Pool/File Photo

A vehicle carrying U.S. swimmers Jack Conger and Gunnar Bentz drives away from a hotel near Rio de Janeiro's international airport after they were stopped from boarding a flight to the United States and questioned by police, days after their participation in the Rio 2016 Olympic Games, August 18, 2016. REUTERS/Bruno Kelly

2016 Rio Olympics - Athletics - Final - Men's Decathlon Discus Throw - Groups - Olympic Stadium - Rio de Janeiro, Brazil - 18/08/2016. Ashton Eaton (USA) of USA competes. REUTERS/Dominic Ebenbichler