Roger Federer clinched a record-extending 10th Swiss Indoors championship title in his hometown of Basel with a crushing 6-2, 6-2 victory over Australia's Alex de Minaur on Sunday.
Britain battled to victory over last year's Davis Cup runners-up Australia in their Finals group stage opener on Wednesday, while Spain and Italy both suffered chastening defeats at home in the premier men's team competition.
Sinner is most likely to upset the applecart after the Italian's run to the Canadian Open title this month
Australian top seed Alex de Minaur moved into his second consecutive final at the Next Gen ATP Finals with a 4-2, 4-1, 0-4, 4-2 victory over Frances Tiafoe in Milan on Friday.
Kyrgios added that he had been in communication with Tennis Australia chief executive Craig Tiley and United Cup tournament director Stephen Farrow about his injury.
'...but at the same time we were able to understand that personal relationships are more important than sometimes professional things.'
IMAGES from Day 8 of the action at the US Open at USTA Billie Jean King National Tennis Center at Flushing Meadows in New York on Monday.
Images from Day 2 of the 2024 Australian Open in Melbourne on Monday.
Novak Djokovic said there was something extra behind his title charge at this year's Australian Open after being deported from the country last year.
World No 8 Muchova withdraws from Aus Open with wrist injury
No 'triple bagel' but Djokovic thumps Mannarino to reach quarters
Andy Murray knows his way around the All England Club better than any player and can give most top seeds a run for their money.
Alexander Zverev continued to rebuild his confidence on clay with a straight sets win over Spain's Roberto Bautista Agut in the Monte Carlo Masters second round.
As a sporting spectacle Alcaraz and Djokovic matches have delivered on every level and would be worthy of the Big Apple spotlight.
Belinda Bencic of Switzerland and Danielle Collins were among those to win their first-round matches at the Adelaide International
Carlos Alcaraz's US Open preparations suffered a setback on Friday as the world number one fell to American Tommy Paul
Gauff will not compete in the Tokyo Olympics after testing positive for COVID-19,
Nick Kyrgios produced a serve-and-volley masterclass to topple world number one Daniil Medvedev 6-7(2), 6-4, 6-2 for his eighth straight win on a day of upsets, while American Tommy Paul rallied to beat Spanish second seed Carlos Alcaraz.
Brady was sidelined by knee and foot injuries since the summer of 2021
The hosts had blanked Germany in their opening tie and became the first to seal a quarter-final spot with their second 3-0 win in the inaugural team event.
Nadal believes he had no reason to feel alarmed ahead of the season's first Grand Slam starting in two weeks.
Alex De Minaur and Nick Kyrgios fell to the ground in relief and celebration after winning the half hour-long extended tiebreak
Federer, a 20-times Grand Slam champion and regarded as one of the greatest players of all time, announced last week that a persistent knee injury meant he was ending his 24-year career.
Nishikori is the latest high-profile men's player to pull out of the season's first Grand Slam following the withdrawal of Briton Andy Murray on Saturday.
Second seed Dominic Thiem edged a first-set tiebreak before turning up the heat to romp into the US Open quarter-finals with a resounding 7-6(4), 6-1, 6-1 victory over Canadian youngster Felix Augur-Aliassime at Arthur Ashe Stadium on Monday.
Pospisil and Shapovalov joined forces in the deciding doubles rubber against Jordan Thompson and John Peers, winning 6-4, 6-4 in front of several hundred delirious Canadian fans.
Australian Nick Kyrgios produced another extraordinary performance to demolish compatriot Alex de Minaur 6-2, 6-3 at the Canadian Masters on Thursday, a day after stunning world number one Daniil Medvedev.
Alcaraz outlasts Hurkacz, Ruud stunned at Canadian Open
A round-up of all the tennis action from around the globe.
Nagal's court coverage and solid defence in long drawn points was the highlight of his win.
Novak Djokovic enjoyed a stress-free return to US competition following a two year absence
Novak Djokovic produced a stunning performance to thrash Frances Tiafoe in his first match since winning Wimbledon in July to edge Team Europe ahead in the Laver Cup on Saturday.
Holger Rune crashed out to Yoshihito Nishioka in the ATP 250 Adelaide International 1 first round.
In doubles, probably for first time, six players are featuring in the men's draw.
20-time Grand Slam champion Roger Federer returned from more than a year away for a last dance in tandem with great rival Rafael Nadal on a gripping and memorable finale by the Thames in front of a 17,500 sell-out crowd at London's O2 Arena on Friday.
Some of the most iconic moments of Roger Federer's glittering career featured Rafael Nadal across the net but on Friday his great Spanish rival will be alongside him for his final bow.
Novak Djokovic kicked off his season in style with a 7-5, 7-5 win over Canadian talent Denis Shapovalov on his favourite Rod Laver Arena court on Tuesday before returning to lead Serbia to a doubles victory that sealed their ATP Cup opener 2-1.
Former world number one Simona Halep stepped up her French Open preparations with a 6-4, 6-4 victory over American Coco Gauff to march into the quarter-finals of the Madrid Open on Monday while Andy Murray won on clay for the first time in five years.
Images from Day 6 of the 2023 Australian Open at Melbourne Park on Saturday.
Australia's Alex de Minaur fought back from a set down to beat former world number one Andy Murray