Dominique Moceanu was the youngest U.S. gymnast in history to win Olympic gold in 1996. Twenty years later, she talks to David Greene about the pressure of competing at such a young age.
Swimmer Santo Condorelli and his father give each other the middle finger wave. Joseph Condorelli told the New York Daily News they started doing this routine when Santo was 8 to release tension
Wins by Katie Ledecky and Michael Phelps have helped American swimmers dominate the competition in what is proving to be an exceptional Olympic showing.
Kohei Uchimura, who has been the best in the world for seven years, kept his Olympic title in the all-around. American Kristin Armstrong took a third gold in cycling — a day before turning 43.
"For all the moms out there, I hope that this was a very inspiring day," Armstrong said after winning her race and making Olympic history in Rio de Janeiro.
The 10 athletes representing the first-ever refugee team received a stadium-rattling ovation at the opening ceremony. They hope to send a message about refugees that reaches far beyond the Rio Games.
Hundreds of elite endurance athletes were taking the prescription heart drug meldonium until it was banned in January. But a similar heart drug, telmisartan, is still allowed.
Sports commentator Christine Brennan is in Rio for the Summer Olympics, where she's noticed a big change in attitudes about doping among athletes and the media.
They were ranked the No. 1 team going into the summer Olympics, and the U.S. women's gymnastics team did not disappoint. Led by Simone Biles, they took the gold in Tuesday's team competition in Rio.