Milan missed the chance to jump to second and remained fourth with 48 points
Tsitsipas pulled out of the Wimbledon warm-up event in Halle, Germany, because of personal reasons
Novak Djokovic beat Casper Ruud in the French Open final to win a men's record-extending 23rd Grand Slam title.
Zverev was left wondering why he has been struggling to get into his matches
Holder Stefanos Tsitsipas moved into the Monte Carlo Masters quarter-finals with a 7-5, 7-6(1) victory over Laslo Djere on Thursday while fourth seed Casper Ruud was knocked out in straight sets by Grigor Dimitrov.
Greece's Tsitsipas battled back from 3-5 down in the third set to eliminate Medvedev with a 6-3, 6-7(11), 7-6(1) win to set up a showdown on Friday with Rublev for the Red Group's other semi-final spot.
A tap-in by Karim Benzema and a powerful strike by substitute Marco Asensio earned European champions Real Madrid a 2-0 win over 10-man Chelsea.
World number one Novak Djokovic earned his 1,000th tour-level victory by beating Casper Ruud 6-4, 6-3 on Saturday to reach the Italian Open final.
World number one Novak Djokovic, bidding for a record-equalling sixth title at the event, is in the Tokyo group with Russian Daniil Medvedev, Germany's Alexander Zverev and Argentine first-time Diego Schwartzman.
Andy Murray may have been the forgotten man at the US Open but gave the crowd and Stefanos Tsitsipas a match to remember, forcing the third seed to grind out a 2-6, 7-6(7), 3-6, 6-3, 6-4 win on Monday and avoid the opening round shocker.
AC Milan entered the Champions League quarterfinals for the first time in eleven years, with a draw in the round of 16 second leg against Tottenham Hotspurs.
Inspired Garcia goes from Cincinnati qualifier to champion
World number one Carlos Alcaraz sailed into the Paris Masters third round with a 6-4, 6-4 win over Yoshihito Nishioka but Rafael Nadal and Daniil Medvedev both slumped to surprise losses on Wednesday.
Petra Kvitova overcame a sluggish start and 10 double faults to beat Madison Keys 6-7(6), 6-4, 6-3 on Saturday and advance to the final of the Cincinnati Open, where she will face Caroline Garcia, the first qualifier to reach the final of a WTA 1000 tournament.
The ATP Finals, in its 50th edition, is being staged in London's O2 Arena for the 12th and last time before it moves to Turin and sadly plans for a vibrant farewell party in front of the usual sell-out crowds has been scuppered by the COVID-19 pandemic.
Holders Real Madrid breezed past Chelsea into the semi-finals of the Champions League with Rodrygo's double securing a 2-0 win at Stamford Bridge.
Nadal, bidding for a record-extending 14th French Open title, won the first five games of the match as he looked on course to repeat his drubbing of the Serb in last year's final.
Wimbledon debutant Eubanks ends Tsitsipas's challenge in fourth round.
Djokovic did not drop a set en route to the final in Rome
'The bubble makes it really tiring week by week'
Rafa Nadal returned from an injury layoff to beat Miomir Kecmanovic 6-1 7-6(4) on Wednesday
Barcelona clinched a 1-0 away win at Atletico Madrid, while AS Roma held AC Milan to a 2-2 draw.
He was drawn in the toughest half of the draw with Nadal as well as in-form Spanish teenager Carlos Alcaraz and world number three Alexander Zverev, who could clash in the last eight.
Djokovic struggled to find his range early in the contest as Spaniard Davidovich Fokina raced to lead
Holger Rune crashed out to Yoshihito Nishioka in the ATP 250 Adelaide International 1 first round.
Formula One and the championship-leading Red Bull team mourned the death of the energy drink company's Austrian founder Dietrich Mateschitz on Saturday at the age of 78.
Madison Keys swept past Wimbledon champion Elena Rybakina 6-2, 6-4 at the Cincinnati Open on Friday, setting up a semi-final clash with Petra Kvitova after the Czech defeated Ajla Tomljanovic.
Images from Day 10 of the 2022 Australian Open in Melbourne on Wednesday.
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.
'My arm has been -- I have had an issue there for quite a while now. It has gotten bigger in the last couple of weeks, so I'm just trying to protect it.'
Russian Andrey Rublev has become the fifth singles player to qualify for the season-ending ATP Finals in Turin next month, the men's tour said.
Serbia's Novak Djokovic outclasses Russia's Andrey Rublev to set up a meeting with unseeded Tommy Paul in the semi-finals of the Australian Open on Wednesday.
Novak Djokovic secured a semi-final place at the ATP Finals with a 6-3, 6-2 victory over Russian Andrey Rublev on Wednesday, his 50th match win of the year, while Stefanos Tsitsipas withdrew from the tournament due to an elbow injury.
Kingsley Coman came back to haunt Paris St Germain again as he earned Bayern Munich a 1-0 win in their Champions League last-16 first leg in Paris on Tuesday.
Rafael Nadal's hopes of winning the year-ending ATP Finals for the first time live on after the Spaniard beat defending champion Stefanos Tsitsipas 6-4, 4-6, 6-2 on Thursday.
Sparks flew when they met for the first time on the ATP Tour in Miami, with Medvedev confronting the Greek over his on-court conduct.
Daniil Medvedev was fined for an outburst against the umpire
Casper Ruud has become the first Norwegian to book a place in the season-ending ATP Finals, leaving one spot to be filled at the tournament in Turin, Italy later this month.
IMAGES from Day 9 of the French Open at Roland Garros in Paris on Monday.