Fourth-ranked Carlos Alcaraz and Norway's world number seven Casper Ruud also have a shot at top spot.
'Everyone is tense. It's the last slam of the season. Your last chance to go deep at a slam for a while.'
Daniil Medvedev was fined for an outburst against the umpire
Sinner will face 19-year-old Learner Tien for the title.
World number one Jannik Sinner's bid for a second Grand Slam title continued to gain momentum as he thumped Christopher O'Connell 6-1, 6-4, 6-2 on Saturday to reach the US Open fourth round.
IMAGES from Day 4 of the matches played at the Australian Open at Melbourne Park on Wednesday.
The escalating conflict involving the U.S. and Israel with Iran has led to widespread disruption in the world of sports, with events postponed, travel plans thrown into chaos, and athletes seeking asylum.
Daniil Medvedev quelled the challenge of wildcard Arthur Fery and Marta Kostyuk fought back to upset Maria Sakkari and storm into the Wimbledon second round on a rainy Wednesday.
Images from the men's singles semi-finals at the US Open semi-finals, at Flushing Meadows, New York, on Friday.
Novak Djokovic fights past Aleksandar Kovacevic to reach the last 16 at Indian Wells Open, setting up a clash with defending champion Jack Draper.
US Open champion Daniil Medvedev may have to provide assurances that he does not support Russian president Vladimir Putin if he is to compete at this year's Wimbledon, British Sports Minister Nigel Huddleston said on Tuesday.
Jack Draper stunned Novak Djokovic in a deciding-set tie-break while Carlos Alcaraz extended his winning streak to reach the quarter-finals of the Indian Wells Open. Iga Swiatek, Jessica Pegula and Elena Rybakina also advanced.
'Of course I am happy to reach No. 1. It was my goal since I was young and especially my goal in the latest times.'
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.
It was billed as the battle of the 20-year-olds but Carlos Alcaraz pulled rank on his childhood buddy Holger Rune to enter the Wimbledon semifinals.
The Russian ended Djokovic's hopes of completing a sweep of all four Grand Slam titles in 2021 when he defeated the Serb in the US Open final in September to pick up his maiden major.
IMAGES from Day 9 of the Wimbledon Championships, at the All England Lawn Tennis and Croquet Club, London, on Tuesday.
World number one Novak Djokovic's French Open preparations were dealt with a blow as he suffered a 6-3, 4-6, 6-2 defeat by Russian Daniil Medvedev in the Monte Carlo Masters quarter-finals on Friday.
A very different Australian Open comes to a familiar end on Sunday as Novak Djokovic looks to thwart another challenge to his Melbourne Park dynasty from the latest Grand Slam aspirant in Daniil Medvedev.
The 25-year-old Medvedev, who has played Grand Slam finals at the Australian and US Opens, is certainly expecting to go through to the second round at Roland Garros.
World No. 3 Alexander Zverev of Germany cruised to a 6-2, 6-1 win over Marcos Giron
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.
Medvedev whips Dimitrov to enter US Open final
Zverev is also in fine form, having beaten world number one Novak Djokovic on his way to claiming the Olympic gold medal in Tokyo at the start of the month.
Novak Djokovic won a record-extending sixth Paris Masters title by avenging his U.S Open final defeat against Russian Daniil Medvedev with a 4-6, 6-3, 6-3 victory in Sunday's showpiece match.
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.
IMAGES from Day 10 of the US Open, at the USTA Billie Jean King National Tennis Center, Flushing Meadows, New York.
His top ranking came on the same day that Russia launched a full-scale invasion of Ukraine that began with air and missile strikes on military facilities before troops and tanks rolled across borders from the north, east and south.
Fourth seed Medvedev had won all his previous matches against Rublev in straight sets and it was no different at a scorching Rod Laver Arena on Wednesday.
Rafael Nadal beat new world number one Daniil Medvedev 6-3, 6-3 in a rematch of their Australian Open clash to storm into the final of the ATP 500 event in Acapulco on Friday.
'We heard it was like the Hollywood of mixed doubles.'
Daniil Medvedev was knocked out in the fourth round of Indian Wells by Bulgarian Grigor Dimitrov on Wednesday as the world number two's near-flawless start turned nightmarish in a 4-6, 6-4, 6-3 defeat.
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.
Novak Djokovic's outstanding serving, mighty forehand and all-court defence delivered him a ninth straight win over Stefanos Tsitsipas in their Red Group match.
'I'm happy to have the chance to try to stop, one more time, somebody from making history.'
Images from the US Open men's singles quarter-finals at Flushing Meadows, New York, on Wednesday.
Daniil Medvedev's bid to reclaim the world number one ranking fell short on Thursday as the Russian lost 7-6(7), 6-3 to Poland's Hubert Hurkacz in the Miami Open quarter-finals.
'Can't leave grass,' the 26 year old captioned an image posted on his social media pages.
Medvedev will be glad to play the role of dream wrecker once again.
'I have the feeling that people [are] starting more and more to... respect what he has done in tennis more and more, because he continues to beat the records'.
