2016 Rio Olympics - Athletics - Women's Heptathlon 100m Hurdles - Olympic Stadium - Rio de Janeiro, Brazil - 12/08/2016. Barbara Nwaba (USA) of USA reacts. REUTERS/Dylan Martinez

2016 Rio Olympics - Athletics - Preliminary - Men's Discus Throw Qualifying Round - Group A - Olympic Stadium - Rio de Janeiro, Brazil - 12/08/2016. Mykyta Nesterenko (UKR) of Ukraine competes. REUTERS/Kai Pfaffenbach

Maria Sharapova of Russia speaks during a news conference at the Brisbane International tennis tournament in Brisbane, Australia on January 1, 2013. REUTERS/Daniel Munoz/File Photo

Convicted child molester Jerry Sandusky (C), a former assistant football coach at Penn State University, leaves after his appeal hearing at the Centre County Courthouse in Bellefonte, Pennsylvania, U.S. on October 29, 2015. REUTERS/Pat Little/File Photo

2016 Rio Olympics - Artistic Gymnastics - Final - Women's Individual All-Around Final - Rio Olympic Arena - Rio de Janeiro, Brazil - 11/08/2016. Simone Biles (USA) of USA competes on the floor during the women's individual all-around final. REUTERS/Mike Blake

Simone Manuel and Penelope Oleksiak celebrate winning joint gold medals and also jointly breaking an Olympic record. REUTERS/Dominic Ebenbichler

Michael Phelps gestures to indicate the four gold medals he has won at this Olympic games as he poses with his gold medal. REUTERS/Dominic Ebenbichler

. Michael Phelps gestures to refer to the four gold medals he has won at this Olympics. REUTERS/Michael Dalder