Merrit Kennedy

The 24-year-old led for the entire two-lap sprint and clocked it in 49.45 seconds. After winning, he celebrated with his closest competitor, Kristof Milak from Hungary.

"After further consultation with medical staff, Simone Biles has decided to withdraw from the event finals for vault and the uneven bars," USA Gymnastics said.

French judo athlete Teddy Riner, a 6-foot-8, two-time gold medalist known as "Big Ted," has dominated his sport for a decade. It was a shock when he lost in a quarterfinal fight.

This means they'll head to the semifinal. The U.S. is trying to become the first reigning Women's World Cup champion to win Olympic gold.

The Serbian star was beaten in the men's tennis semifinal by Germany's Alexander Zverev. It means Djokovic can't make history by winning all four major tournaments and Olympic gold in a single year.

Fields, who took gold in BMX racing at the 2016 Olympic Games, came down wrong from a jump and suffered a horrific crash. A Team USA doctor says Fields is stable and awaiting further evaluation.

This competition was initially defined by who wasn't competing. U.S. star Simone Biles, the greatest gymnast of all time and the heavy favorite to win, pulled out to take care of her mental health.

It's a bold look that has been compared to the masked Batman villain Bane — even by the Japanese organizers of the Tokyo Games. The mask is voluminous and is a nod to the host country, Japan.

"the outpouring love & support I've received has made me realize I'm more than my accomplishments and gymnastics which I never truly believed before," Biles said in a tweet.

The 24-year-old sprinter set an Olympic record in the blazing fast two-lap race, claiming his first-ever individual gold medal. It was a strong day in the pool for the U.S.

Bobby Finke made up almost a second and a half in the final stretch of the 16 lap race, making up time and surging past the leaders to win the event at the Tokyo Olympics.

The U.S. women's team took an early lead against the Russians and maintained it the entire game. The action unfolds over just 10 minutes — or the first to 21 points if that happens more quickly.

"We wholeheartedly support Simone's decision and applaud her bravery in prioritizing her well-being," USA Gymnastics said in a statement.

The top star of U.S. swimming hadn't had the start to the Games that she wanted. "I don't want anyone to feel sorry for me, or feel like silver or any other medal besides gold is a disappointment."

Traditional basketball's scrappy cousin is making its Olympic debut in Tokyo, introducing the world to the dizzyingly fast, more compact play of the game of driveways and public parks.

"I tried to go out here and have fun," the U.S. superstar said, "but once I came out here, I was like, 'no, mental is not there, so I just need to let the girls do it and focus on myself.'"

Flora Duffy is one of two Bermudian athletes participating in the Tokyo Olympics. The remote set of islands in the middle of the Atlantic Ocean is more than 600 miles from the closest land mass.

The elements of the bouquet carry a deeper story, and they are years in the making. They're meant to symbolize the country rising from the devastating earthquake and tsunami in 2011.

When a U.S. beach volleyball player tested positive for coronavirus, his teammate needed to find another partner before their first Olympic match. So far, it's working.

Australia's Ariarne Titmus narrowly edged her out of gold in the 400 meter freestyle final. Ledecky, the biggest star of U.S. swimming, has a fierce rivalry with Titmus.