Gauff pulled out of the Tokyo Games after testing positive to COVID-19, while Richardson was banned after failing a cannabis test.
Eddy Alvarez, a former Olympic speed skater could become the sixth athlete in history to win a medal at the Winter and Summer Games if he earns one in Tokyo.
The opening ceremony of the Tokyo Olympics will be held without fans on July 23 at the Tokyo Olympic Stadium.
A look at the marching order of the parade of athletes at the Tokyo Olympics and other Olympic opening ceremony rituals.
Kevin Durant and Draymond Green are the only two survivors from the USA Olympic basketball team that won gold at the 2016 Olympics in Rio.
Rosie Gallegos-Main has since apologized for her comments and will undergo diversity, equity and inclusion training.
Two-time medal winning pitcher Cat Osterman will return to the Olympics pitch for the first time since the softball was scrapped in 2008.
Soccer star Megan Rapinoe could become a two-time Olympic champion this month should the U.S. Women's National Team win gold in Tokyo.
Several athletes have tested positive for COVID-19 over the past week, as Tokyo prepares for the Olympics to begin on Friday.
Team USA's defeat to Nigeria on Saturday was the first time that the American national team had lost to an African side.
The three-time defending Olympic champions' 93-81 loss was only the third time since 1992 they have lost consecutive games.
"We certainly have to respect the role of the U.S. Anti-Doping Agency and the U.S. Olympic Committee and the decisions they make, but it is sad," Psaki said on Wednesday.
The Team U.S.A. quartet includes Biles, Lee and Olympic debutants Jordan Chiles and Grace McCallum.
Sen. Ted Cruz has regularly hit out against liberals on social media and has accused them of hating America, or freedom, on several occasions.
"We have heard the plaintiffs' testimony, and their allegations are heartbreaking. We hope that this allows them to begin a new chapter in their lives," said the CEO of USA Water Polo.
"When the Olympics came back to me, it was a no-brainer to go back," the lightweight boxer said.
McNeal was handed a five-year suspension, which, if upheld, will ban the hurdler from competing in Tokyo this summer and Paris in 2024.
"Colorado Crossroads will no longer be a qualifying event for the USA Volleyball Girls Junior National Championship," the national governing body of volleyball announced.
Keller's teammates on the 2004 freestyle relay included Michael Phelps and Ryan Lochte. Keller was wearing a Team USA jacket in this video.
As the 13th edition of the tournament gets underway, the U.S. are the overwhelming favorite to retain the trophy for the eighth consecutive time.
The 13th edition of the Presidents Cup gets underway in Melbourne, Australia, on Thursday as the U.S. look to retain the trophy.
The Eagles hope to finish the Rugby World Cup on a high when they take on Tonga on Saturday as they look for their first win.
The 16th edition of women's golf biennial contest between Team Europe and Team USA kicks off on Friday in Scotland.
Spain takes on Australia in the first semifinal on Friday, while France faces Argentina after knocking out Team USA.
With the 16th edition of the contest between Team USA and Team Europe beginning on Friday, here's all you need to know about the format.
The Americans' bid for an unprecedented third consecutive world title came to an end as they lost 89-79 to France.
Team USA is an odds-on favorite to win the tournament for a third consecutive time, but bookmakers expect it to be a close affair.
Team USA arrives into the quarterfinals with a perfect 5-0 record after beating Brazil 89-73 in the final group game on Monday.