Sinner's coach Darren Cahill said the Australian Open and Wimbledon champion was suffering from a virus.
'I have no idea what's happening right now, I'm not in a dream, it's just crazy. I'm just so happy with my performance these past two weeks.'
Japan staged a remarkable second-half comeback to defeat five-times world champions Brazil 3-2 in a friendly at a sold-out Tokyo Stadium on Tuesday.
With eight points on offer to the winner of Saturday's 100km race, he and Norris -- 22 points behind Piastri -- both have a good chance to reduce the gap to the Australian who was three tenths slower than his teammate.
'I had some nerves but if you want to beat one of these guys you have to be unbelievably calm and keep your head there.'
Sinner advanced with a 6-3, 7-6 (3) victory over home favorite Bu Yunchaokete and No. 2 seed Alcaraz held off No. 3 Daniil Medvedev 7-5, 6-3 in Tuesday's semifinals.
Norris last led the standings in April, a gap of 189 days, and had not won a race since Hungary in early August. Sunday was his sixth victory of the season, one less than Piastri, and career 10th.
'It flows through families, caste groups, and local WhatsApp communities where trust is personal.' 'Children are taught to defer to elders, so if a parent or uncle forwards something, you don't question it.'
Carlos Alcaraz won the Cincinnati Open after top seed Jannik Sinner retired while trailing 5-0 in the first set of their final on Monday.
Max Verstappen seized pole position for Sunday's US Grand Prix while Formula One leader Oscar Piastri qualified sixth after a costly sprint race collision with his McLaren teammate Lando Norris.
Red Bull's Max Verstappen secured a dominant win from pole position in the Azerbaijan Grand Prix in Baku, leading the race from start to finish.
'The number one (ranking) is a goal that I had set myself almost at the beginning of the year and to see that I have achieved it is something incredible.'
Piastri now leads Britain's Norris by 14 points with five rounds and two sprints remaining, while Verstappen has slashed his gap to the Australian to 40 after being 104 behind at the end of August.
Estevao and Rodrygo at the double as Brazil thrash South Korea 5-0
India does not do trade agreements in a hurry or with a "gun to our head", Commerce and Industry Minister Piyush Goyal said on Friday. He said India is actively negotiating trade pacts with countries and regions, including the European Union (EU) and the US.
Alcaraz also found a surprising source of joy and mental training on the green: golf!
IMAGES from football matches played across Europe on Sunday
Dharambir and Atul win silver and bronze for India in World Para Athletics C'ships
United States President Donald Trump said he will file a $15 billion defamation and libel lawsuit against The New York Times, accusing the newspaper of running what he called a decades-long 'method of lying' against him, his family and the America First movement.
US President Donald Trump received a mixed reception of cheers and boos at the US Open final at Arthur Ashe Stadium in New York on Sunday.
Diane Keaton's wit and honesty taught us that ageing and uncertainty aren't weaknesses, they are part of what makes us human and graceful, observes Sreehari Nair.
While Jannik Sinner and French Open champion Carlos Alcaraz have won the last seven major titles between them, the Italian cautioned against complacency and pointed to the strength of competition in the ATP Tour.
Defending champion Jannik Sinner, who has been recovering from illness, received a more favourable route to the US Open final than Carlos Alcaraz while Aryna Sabalenka will be tested in her bid to retain her title after the draw was made on Thursday.
Novak Djokovic felt unaffected by his recent losses to the top two players in the world, Carlos Alcaraz and Jannik Sinner, saying that while it is not ideal to lose big matches to the top talent regularly
Carlos Alcaraz has revealed the new cropped hairstyle he is sporting at the US Open was the result of his brother mishandling the clippers when he wanted a quick trim.
Japan, South Korea, Australia, Iran, Uzbekistan and Jordan have already taken six of Asia's eight guaranteed spots at next year's 48-team World Cup.
Both US Open champions share a fun connection off the court: They were born on the same day, May 5.
Carlos Alcaraz proved a class above defending champion Jannik Sinner to win the men's singles title at the US Open with a 6-2, 3-6, 6-1, 6-4 victory at the Arthur Ashe stadium, in New York, on Sunday.
In the evening session, men's third seed Alexander Zverev and women's fourth seed Jessica Pegula were forced off the court mid-match due to rain and the threat of lightning.
Alcaraz grinds down Zverev to win maiden French Open title
Instead, Merryday called the filing "decidedly improper and impermissible," likening it more to a political screed than a legitimate legal complaint.
Top seed and defending champion Jannik Sinner, playing on his 24th birthday, ended French qualifier Terence Atmane's dream run at the Cincinnati Open with a 7-6(4), 6-2 win on Saturday to reach the final of the US Open tune-up event.
Carlos Alcaraz beat Novak Djokovic in the Wimbledon final to win his fourth Grand Slam title.
Novak Djokovic became the oldest man to reach the quarter-finals at all four Grand Slams in a single season.
Novak Djokovic outclassed American Taylor Fritz to set up a high-voltage semi-final showdown against Carlos Alcaraz.
The terrorists who carried out the deadly terror shooting attack at the Ramot Junction in Jerusalem used a makeshift "Carlo" submachine gun, otherwise known as a Carl Gustav.
Carlos Alcaraz said he could hold his head high despite being unseated from his Wimbledon throne by Jannik Sinner on Sunday and the Spaniard praised their hot rivalry for being several notches higher than the others on the men's tour.
Jannik Sinner defeated Carlos Alcaraz in a high-octane final to claim his maiden Wimbledon trophy and fourth Grand Slam crown on Sunday.
Jannik Sinner had to dig deep to get the better of Auger-Aliassime in the second semi-final.
Sachin Tendulkar was snapped, flanked by 20-time Grand Slam champion Roger Federer and Bjorn Borg, who has won 11 majors.