Russia claims Ukraine launched a drone attack on President Putin's residence, which was thwarted. Russia warns of retaliation and accuses Ukraine of trying to derail peace talks.
The CAS banned teenage figure skater Kamila Valieva in January for four years for doping, effective from December 2021, a decision that also stripped the Russian Olympic Committee of its gold medal in the team event at the 2022 Games, nearly two years after the competition.
"Throughout our history we've learned this lesson -- when dictators do not pay a price for their aggression, they cause more chaos. They keep moving. And, the costs and threats to America and the world keep rising," Biden said addressing the joint session of the Congress in his first State of the Union.
Daniil Medvedev fired Russia to victory in the $7.5 million ATP Cup with a dominant performance against Italy in Melbourne on Sunday.
The Russian athletics federation has accepted its ban from the sport in the wake of widespread doping revelations, the International Association of Athletics Federations (IAAF) said on Thursday.
Indian tennis ace Sania Mirza, making a comeback from a wrist injury, went down fighting against her nemesis Ana Chakvetadze, resulting in team Asia-Pacific's 0-2 defeat against Team Russia at World Team Challenge tournament in Hong Kong on Thursday.
The US women's gymnastics team, anchored by all around world champion Simone Biles, won the team gold medal at the Olympics on Tuesday by the widest margin ever.
Weakened and bruised by sport's biggest doping scandal in decades, Russia is under siege at the Rio Games.
Sun Yang became the first Chinese swimmer to win the Olympic men's 200 metres freestyle gold medal on Monday.
Athletes from one sport should not be punished for the sins of those from another, the IOC president said on Wednesday, cooling speculation that Russia could be banned from the Olympics altogether for systematic doping.
Portugal's Cristiano Ronaldo celebrated his Madeira homecoming with an early strike but Sweden wrecked the party by hitting back from two down to win 3-2.
Check out the gold medallists on Friday, Day 14 of the Olympics in Rio de Janeiro.