Brazil's Jessica Quintino, right, is challenged by Montenegro's Milena Raicevic, during the women's preliminary handball match between Brazil and Montenegro at the 2016 Summer Olympics in Rio de Janeiro on Sunday. Associated Press/Ben Curtis

Guilherme Melaragno of Brazil, left, and Ruben Limardo Gascon of Venezuela compete in a men's team epee fencing competition at the 2016 Olympics in Rio de Janeiro. Associated Press/Andrew Medichini

Brazil's Ana Paula Belo scores a goal during the women's preliminary handball match between Brazil and Montenegro at the 2016 Summer Olympics in Rio de Janeiro. Associated Press/Ben Curtis

Argentina's Facundo Callioni falls while fighting for the ball with Spain's Alex Casasayas during a men's field hockey match at the 2016 Summer Olympics in Rio de Janeiro on Sunday. Associated Press/Dario Lopez-Mills)

Armenia's Aram Avagyan, left, and Ireland's Michael John Conlan exchange punches during a men's bantamweight 56-kg preliminary boxing match at the 2016 Summer Olympics in Rio de Janeiro on Sunday. The Associated Press/Frank Franklin II

Germany's Ronny Rauhe paddles during a practice session in Lagoa for the canoe sprint competition during the 2016 Summer Olympics in Rio de Janeiro on Sunday. Associated Press/Andre Penner

Argentina's Lucas Rossi embraces his goalkeeper Juan Vivaldi after his team beat Spain during a men's field hockey quarterfinal at the 2016 Summer Olympics in Rio de Janeiro on Sunday. Associated Press/Dario Lopez-Mills)

Serbia's Jovana Stevanovic, 15, is unable to keep a volley alive during a women's preliminary volleyball match against the Netherlands at the 2016 Summer Olympics in Rio de Janeiro on Sunday. Associated Press/Jeff Roberson

China's Yang Bin, red, competes against Morocco's Zied Ait Ouagram during the men's Greco-Roman competition at the 2016 Summer Olympics in Rio de Janeiro on Sunday. Associated Press/Markus Schreiber)

Kenya's Jelagat Sumgong celebrates winning the women's marathon during the Summer Olympics Sunday in Rio de Janeiro. The Associated Press/Johannes Eisele, Pool Photo

Gold medalist Jelagat Sumgong, of Kenya, left, and silver medalist Eunice Jepkirui Kirwa of Bahrain react after crossing the finish line in the women's marathon Sunday. Associated Press/Felipe Dana

China center Hongpin Huang, 14, reaches in as United States center Brittney Griner shoots during the first half of a women's basketball game Sunday. Associated Press/Carlos Osorio

Cuba's Lazaro Jorge Alvarez, left, fights Brazil's Robson Conceicao during a men's lightweight 60-kg semifinals boxing match Sunday. Associated Press/Frank Franklin II

Britain's Kristian Thomas performs on the floor during the artistic gymnastics men's apparatus final Sunday in in Rio de Janeiro. The Associated Press/Rebecca Blackwell

Britain's Kristian Thomas performs on the floor during the artistic gymnastics men's apparatus final Sunday at Rio de Janeiro. Associated Press/Rebecca Blackwell)

The United States team huddles at mid-court after their women's basketball game against China Sunday. Associated Press/Carlos Osorio

Germany's Christian Ahlmann, riding, Taloubet Z, competes in the equestrian jumping competition. Associated Press/John Locher

Spain's Marc Minguella Alferez, left, passes the ball forward as Montenegro's Darko Brguljan goes to block during their men's water polo preliminary round match Sunday. Associated Press/Sergei Grits

United States' Simone Biles celebrates on the podium after winning vault gold during the artistic gymnastics women's apparatus final Sunday. Associated Press/Dmitri Lovetsky

United States' Kyrie Irving drives to the basket past France's Rudy Gobert in Sunday's game. Associated Press/Charlie Neibergall

Germany's Kira Walkenhorst passes a ball during a women's beach volleyball quarterfinal match against Canada Sunday. Associated Press/Petr David Josek

Justin Rose of Great Britain, left, and Henrik Stenson of Sweden, shake hands after Rose won gold and Stenson won silver during the final round of the men's golf event Sunday. Associated Press/Chris Carlson

United States' DeAndre Jordan hangs on the rim as he scores against France during Sunday's game at the 2016 Summer Olympics in Rio de Janeiro.

Justin Rose of Great Britain wins the gold medal in men's golf Sunday at the 2016 Summer Olympics in Rio de Janeiro.