Germany's Alexander Zverev beat Russian world number two and defending champion Daniil Medvedev 6-4, 6-4 in the summit clash of the ATP Finals on Sunday to win the title for the second time in his career.
Alcaraz has been seen as fellow Spaniard Rafael Nadal's successor on the Paris clay.
Top seed Carlos Alcaraz dominated Gael Monfils 6-2 6-4 and fourth seed Alexander Zverev escaped a tight first set en route to a 7-6(4) 6-3 win over Christopher Eubanks to reach the last 16 at the Miami Open on Monday.
Alcaraz will face German Alexander Zverev or two-time runner-up Casper Ruud of Norway on Sunday.
Factbox on Carlos Alcaraz, who beat Serbian fourth seed Novak Djokovic to win his first Australian Open title on Sunday, increasing his overall Grand Slam tally to seven.
Jannik Sinner retained his Australian Open title with an emphatic 6-3, 7-6(4), 6-3 win over Alexander Zverev on Sunday
Playing in the same arena where the German had suffered torn ligaments in his ankle a year ago
The former world number two, Alexander Zverev has repeatedly rejected the claims by his former girlfriend Brenda Patea that she was a victim of bodily harm during an argument in 2020, his lawyers have said.
Philippine wildcard Alexandra Eala pulled off the biggest win of her young career with a stunning upset of Polish world number two Iga Swiatek.
Canada's Felix Auger-Aliassime came from a set down to earn his first victory at this year's ATP Finals in Turin with a 4-6, 7-6(7), 7-5 win over American Ben Shelton on Wednesday.
Third seed Alexander Zverev eased past home favourite Ugo Humbert
After shaking hands with the opponents, the 24-year-old Zverev, ranked third in singles, approached the umpire's chair and hit it repeatedly before heading towards his courtside seat, upset over a line call during the match earlier.
He said on Friday he was concerned the injury, which caused him to scream in pain on court Philippe Chatrier, was "very serious".
Andy Murray said his six-month stint as Novak Djokovic's coach was a valuable learning experience despite a disappointing end after the high-profile partnership failed to yield a title.
Alexander Zverev cruised past Frenchman Lucas Pouille in straight sets in the first round of the Australian Open on Sunday.
Carlos Alcaraz, Novak Djokovic, and Rafael Nadal all took to social media to congratulate the Italian.
The Serbian's 1-6, 6-3, 6-1 defeat also ended his dream of winning an Olympic singles gold medal, the only major honour missing from his long list of accolades.
IMAGES from Day 4 of the matches played at the Australian Open at Melbourne Park on Wednesday.
Images from the men's singles action at the US Open on Sunday.
Germany did not need Alexander Zverev as Kevin Krawietz and Tim Ptz booked their place in Bologna, Italy, with a 6-3, 7-6(4) win over the Japanese pair of Yosuke Watanuki and Takeru Yuzuki for an unassailable 3-0 lead in the second qualifying round.
World number six Novak Djokovic has pulled out of Serbia's Davis Cup first-round qualifying tie due to injury.
World number two Jannik Sinner survived a stern test from Joao Fonseca on Tuesday to reach the Indian Wells quarter-finals.
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.
Australian Open organisers invoked their extreme heat policy as temperatures soared at Melbourne Park on Tuesday, prompting the suspension of play on outer courts and the closure of roofs on the main showcourts.
Struggling Swiatek will open her campaign against Slovakian Rebecca Sramkova.
Novak Djokovic hit a barrage of drop shots to beat Alexander Zverev for a place in the French Open semi-finals on Wednesday.
Zverev was trailing 7-6(8), 6-6 against Nadal when he rolled his ankle and he screamed out in agony. The 25-year-old was fighting for his first Grand Slam title and would have taken over as world number one had he succeeded in his quest.
The Australian Open will offer a record A$111.5 million ($74.73 million) in prize money this year and while players welcomed the increase, top names like Coco Gauff and Aryna Sabalenka said the push for a bigger payout must continue across the Grand Slams.
The 18-year-old Rune broke world number three Zverev four times in a flawless performance for his first win over a player in the ATP top-10
Bulgarian Grigor Dimitrov defeated Alexander Zverev 6-4, 6-7(4), 6-4 in a thrilling contest on Friday to reach the Miami Open final, where he will face world number three Jannik Sinner.
Alcaraz swats aside Walton as career Grand Slam bid begins in Melbourne
German fifth seed Alexander Zverev survived a stern test of nerve to reach his second Grand Slam semi-final this year after outclassing Croatian Borna Coric at the US Open on Tuesday.
Vintage Djokovic dethrones Sinner to set up Alcaraz final at Australian Open
Images from the US Open men's singles second round matches, at Flushing Meadows, New York, on Wednesday.
Medvedev had said he did not like playing Tien after a trilogy of matches that went the distance last year and the 20-year-old American proved him right with a clinical performance that included 33 winners.
Jannik Sinner has decided not to take part in this year's Davis Cup Finals with reigning champions Italy confirming his absence in Monday's team announcement, while world number one Carlos Alcaraz will represent Spain at next month's competition.
IMAGES from Day 6 of the Wimbledon Championships, at the All England Lawn Tennis and Croquet Club, London, on Saturday.
Defending champion Stefanos Tsitsipas came out on top from a thrilling quarter-final clash with Diego Schwartzman, prevailing 6-2, 6-7(3), 6-4 on Friday to set up a meeting with Alexander Zverev at the Monte Carlo Masters.
After a gutsy performance that pushed Sinner to four sets, the Italian world number one ultimately proved too strong. Yet the Canadian said he would carry plenty of positives forward from Flushing Meadows.
The Russian, twice a losing finalist at Melbourne Park, went toe-to-toe with the big Pole for almost four energy-sapping hours on Rod Laver Arena
