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American Jessica Pegula stunned powerful fifth seed Maria Sakkari to fly into her second straight Australian Open quarter-final on Sunday.

Barbora Krejcikova blew away former two-time champion Victoria Azarenka in the last 16 Sunday of the Australian Open as giant-killer Amanda Anisimova tries to make Ashleigh Barty her latest victim at Melbourne Park.

Beijing city officials on Sunday said all two million residents of a neighbourhood where they identified a small cluster of Covid-19 infections will be tested, less than two weeks ahead of the start of the Winter Olympics.

Emma Thompson's naked scene in her new film about an older woman hiring a sex worker was "probably the hardest thing I've ever had to do," she told the Sundance film festival Saturday.

Thousands of mourners packed a temple in Vietnam's Buddhist heartland early Sunday to pay tribute to the late Vietnamese monk and peace activist Thich Nhat Hanh, credited with bringing mindfulness to the West.

French Open champion Barbora Krejcikova shattered the dreams of two-time Australian Open winner Victoria Azarenka on Sunday to set up a quarter-final with big-serving Madison Keys.

Vegan bacon sizzles on a pan in the office of a French startup whose quest to produce the "holy grail" of the growing plant-based meat industry gained the financial backing of Hollywood star Natalie Portman.

The "curse" of Olympic overspending looks set to strike again at the Beijing Games, with stringent Covid measures and loss of ticket sale revenues pushing up costs for China.

Twenty years after he planned the controversial barrier between Israel and Palestinians, Dany Tirza is developing a security tool that requires no cement: body cameras with facial recognition technology.

Novak Djokovic intends to play the Australian Open in 2023, tournament chief Craig Tiley said Sunday while blaming "miscommunication" for his deportation ahead of this year's event.

Former Australian Open finalist Marin Cilic said he felt "really good" about his tennis and was confident of making an impact after reaching the second week at Melbourne Park.

As they linger, trapped at the US-Mexico border, the young Nicaraguan man and Guatemalan woman say it is love that has helped them hang on to their American dream despite the pain of a long, anxious wait.

Human rights and the humanitarian crisis in Afghanistan, where hunger threatens millions, will be in focus at talks opening Sunday in Oslo between the Taliban, the West and members of Afghan civil society.

Blocks from the White House, an unassuming edifice in downtown Washington that once held offices used by the US Department of Justice is set to be converted into homes for hundreds of people.

The Federal Reserve has its inflation-fighting weapons ready to fire, and when the US central bank's policy committee convenes this coming week, the focus will not be on whether they will pull the trigger but rather how many times.

Thousands of barrels of crude oil that were spilled off Peru's central coast have taken a grim toll: dead birds adrift in the sea and irate fishermen stuck on the docks.

Big-serving Madison Keys stunned eighth seed Paula Badosa to power into an Australian Open quarter-finals for a third time Sunday in a clash between two of the season's most in-form players.

The Cincinnati Bengals busted another NFL playoff drought Saturday as rookie Evan McPherson kicked a 52-yard field goal as time expired for a 19-16 victory over the Tennessee Titans.

Big-serving Madison Keys stunned eighth seed Paula Badosa to power into an Australian Open quarter-finals for a third time Sunday in a clash between two of the season's most in-form players.

Early voting begins in Portugal on Sunday for a snap general election, with polls showing the incumbent Socialists still ahead though with their lead over their nearest centre-right rivals narrowing.

Novak Djokovic intends to play the Australian Open in 2023, tournament chief Craig Tiley said Sunday while blaming "miscommunication" for his deportation ahead of this year's event.

Rookies Paul Barjon and Lee Hodges defied blustery winds in the California desert on Saturday to share the third-round lead in the US PGA Tour American Express, each in search of a first tour title.

New Zealand Prime Minister Jacinda Ardern was Sunday forced to call off her own wedding as she tightened Covid-19 restrictions in the face of an outbreak of the Omicron variant.

Jason Holder did the bulk of the damage as England's latest batting collapse paved the way for West Indies' nine-wicket win in the first Twenty20 international in Bridgetown on Saturday.

Britain on Saturday alleged that it had information that Moscow was "looking to install a pro-Russian leader in Kyiv" as fears of a Russian invasion of Ukraine grow.

Atletico Madrid pulled off an enthralling comeback on Saturday by scoring in the 91st and 93rd minutes to claim a 3-2 victory over Valencia that Diego Simeone will hope can revive their season.

World number one Nelly Korda notched four birdies in a three-under par 69 on Saturday to maintain her one-shot lead in the US LPGA Tour's Tournament of Champions in Florida.

Marseille made it five successive wins away from home to move second in Ligue 1 with a 2-0 victory at Lens on Saturday, while Hatem Ben Arfa's new club Lille slipped to a 2-0 defeat at Brest.

South Africa's Rugby World Cup winner Duane Vermeulen scored his first Ulster try as the Irish province beat Clermont 34-31 on Saturday to finish second in Pool A of the European Champions Cup.

Jason Holder took a format-best four wickets for seven runs as England were dismissed for just 103 in the first Twenty20 international against the West Indies at Bridgetown on Saturday.

Edin Dzeko headed Inter Milan five points clear at the top of Serie A on Saturday with his last-gasp strike in a 2-1 win over Venezia, while a severely depleted Atalanta held Lazio to a goalless draw.

Giant-killer Amanda Anisimova, fresh from knocking out defending champion Naomi Osaka, will have world number one Ashleigh Barty in her sights when the Australian Open hits the last-16 stage on Sunday.