World number one Carlos Alcaraz marked his return to action following his Wimbledon triumph with a battling 4-6, 6-4 (10-8) win over David Goffin in their Hopman Cup clash on Friday but could not prevent Spain from losing 2-1 to Belgium.
Rohan Bopanna and Prakash Amritraj crashed out in their respective men's singles semi-final matches at ATP Challenger Series tournaments being simultaneously played in England and the United States.
Rafael Nadal is the oldest title winner in the history of the clay-court tournament.
While Djokovic has a firm grip on top spot, there will be a new number two on March 15 in Russian Daniil Medvedev, who will climb one place to his career-best ranking to replace Nadal, who has not played since the Australian Open due to a back injury.
World number one Novak Djokovic overpowered Dennis Novak after Dusan Lajovic battled past Gerald Melzer and Serbia went on to a 3-0 win in their opener against Group F hosts Austria in the Davis Cup Finals in Innsbruck on Friday.
World No 1 Novak Djokovic maintained his perfect tournament record and advanced to his fifth China Open final with a 6-3, 6-4 victory against Andy Murray on Saturday.
Defending champion Andy Murray and ATP finals hopefuls Mikhail Youzhny and Fernando Verdasco all made surprise early exits from the Valencia Open on Wednesday. World number four and top seed Murray fell 6-2, 3-6, 6-2 to Argentine Juan Monaco in the second round, while world number 10 Youzhny pulled out at the start of the day with a back problem.
US Open champion Carlos Alcaraz has become the youngest world number one since the ATP rankings began in 1973.
Djokovic says Peng situation horrifying, says tennis must unite.
Another Indian pair of N Sriram Balaji and Vishnu Vardhan will also be seen in the semi-finals after their opponents, Gianluca Mager and Emil Ruusuvuori withdrew from the last-eight match due to an injury to the former.
Monfils, 35, reached the last four at the 2008 French Open and repeated the feat eight years later at the 2016 US Open but has never reached a Grand Slam final.
American teenage sensation Coco Gauff progressed to her maiden WTA final as she eased past Germany's Andrea Petkovic 6-4, 6-4 at the Linz Open on Saturday. The 15-year-old Gauff became the youngest player to reach a WTA final since Czech Republic's Nicole Vaidisova won the Tashkent Open in 2004, also aged 15.
Veteran Leander Paes brushed off the disappointment of Rio Olympics as he and his German partner Andre Begemann made it to the final of the ATP Winston-Salem Open beating Swede Robert Lindstedt and Pakistan's Aisam-ul Haq Qureshi in a close encounter.
Images from Day 3 of the US Open, at Flushing Meadows, New York.
Andy Murray battled past Romanian qualifier Marius Copil 6-3, 6-7(7), 6-4 at the European Open in Antwerp on Friday to reach his first singles semi-final in two years.
World number one Novak Djokovic had to work hard for a three-set victory over Hungarian Marton Fucsovics at the Paris Masters on Tuesday in his first match since losing the U.S. Open final in September.
The American was forced to default his semi-final match against Kenneth Carlsen because of an ankle injury
World No 1 Novak Djokovic ended Kei Nishikori's impressive debut at the ATP World Tour Finals with a 6-1, 3-6, 6-0 semi-final victory at the O2 Arena on Saturday.
Former world number one Rafa Nadal wasted a match point as he slipped to a surprise semi-final loss to Austrian Dominic Thiem on his beloved clay at the Argentina Open on Saturday.
Spain's Marcel Granollers-Pujol upset top seed James Blake to claim the US Men's Clay Court Championship and his first ATP title.
The Serbian had to save two set points in the first set before finding his groove to reach his 10th title clash in Rome and remain on course to win his 36th ATP Masters 1000 crown and overtake Rafael Nadal on the all-time list.
Rafael Nadal will become the first man to win 21 Grand Slam titles if he defeats the Russian in Melbourne.
Roger Ferdrer came up with a solid all-round display to beat world No 1 Rafael Nadal 6-4, 6-3 in the final and win the Shanghai Masters on Sunday.
A round-up of all the tennis action from around the globe.
While Federer and Nadal will look to reignite the flair and fight they showed to reach last year's final, 2018 could have a different script at play.
Wawrinka splits with long-time coach Norman
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.
Murray was coached by Lendl from 2011-14 before he rejoined his team in June last year, helping Murray capture his second Wimbledon title and his second Olympic gold in Rio.
India's Leander Paes and Canada's Daniel Nestor have lost to Andreas Seppi and Fabio Fognini of Italy 3-6, 7-5, 10-8 in their semi-final of the ATP China Open tournament in Beijing.
Somdev Devvarman registered the biggest win of his fledgling career when the wiry Indian upstaged sixth seeded Marin Cilic in straight sets in the second round of the USD 1.4 million Legg Mason Tennis Classic in Washington.
Battle-scarred Argentine Juan Martin del Potro clinched his 21st career title with a 6-4, 6-4 win over Kevin Anderson in the Mexican Open final in Acapulco on Sunday.
Tim Henman is determined to bury the disappointments of 2005 and begin the new tennis season on a confident note.
The ATP issued the latest men's tennis rankings on Monday and the top 10 list remains unchanged with Serbian tennis ace Novak Djokovic still leading the rankings.
Rohan Bopanna and Florin Mergea finished second in Ashe/Smith Group after losing to the Italian pair of Fabio Fognini and Simone Bolleli in their last group match in the ATP World Tour Finals , at the O2 Arena, in London, on Thursday.
Divij Sharan and Purav Raja shocked top seeded Colombians Juan Sebastian Cabal and Robert Farah to breeze into the summit clash of the ATP Claro Open, in Bogota, Colombia.
Aryna Sabalenka rose above geopolitical tumult to become the first player to claim a Grand Slam title as a neutral at the Australian Open.
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
The world number one retained his Thailand Open title with a 6-3, 7-5 victory over British teenager Andy Murray.
Japan's Kei Nishikori made a stunning start to what will surely be the first of many appearances at the ATP World Tour Finals with a 6-4, 6-4 win over home favourite Andy Murray on Sunday.
Zverev has not lost to Wawrinka in two previous meetings but is not taking the 2014 Melbourne Park champion lightly.
