Unseeded American Amanda Anisimova saved two match points to stun the former world number one 4-6, 6-3, 7-6 (10/5) in third round match.
Britain's Andy Murray, ranked 113 and playing as a tournament wild card, didn't stick around afterwards and walked quickly from the court, showing great disappointment at his lost opportunity.
Researchers at Citizen Lab warn that athletes attending the Winter Games may be subject to digital surveillance.
Fifty-two-year-old Acun Ilicali purchases Hull City from the Egyptian-British Allam family which owned it for 11 years.
The Olympics in Beijing were already under fire for the country's policies regarding its Uighur minority, but now its internal Olympics protocol is also under the spotlight.
Osaka, winner of the 2019 and 2021 Australian Opens, has vowed to have more fun on court this year, following a difficult last year in which she said she had suffered from depression.
Qatar has built seven stadiums one refurbished for the World Cup organisation but there will not be enough hotels some fans may have to stay on cruise ships for the event.
Peng Shuai alleged on social media in November that former Chinese vice-premier Zhang Gaoli forced her into sex during a long-term on-off relationship.
Francisco "Paco" Gento, a former Real Madrid great who is the only soccer player to win six European Cup titles, has died.
Barcelona's Spanish midfielder Alexia Putellas wins player of the year award for 2021 and Bayern Munich's Polish striker Robert Lewandowski wins with same award in men's category.
Defending Japanese champion Naomi Osaka has beaten Colombian rival Camila Osorio with 6-3, 6-3 and reached the second round of the Australian Open.
With the men's world number one Novak Djokovic flying home after being denied entry to defend his title, the tournament remains wide open with Rafael Nadal, Alexander Zverev, Daniil Medvedev and Stefanos Tsitsipas all in contention.
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