India's Nagal draws world No 128 Bradley Klahn in opener.
Rafael Nadal had just beaten rising Greek force Stefanos Tsitsipas in a classic scrap at the ATP Finals but had no idea whether it was good enough to keep him in the tournament.
The Wimbledon Championship runner-up is expected to be a top draw at the ATP 250 event to be played at the Mhalunge Balewadi Stadium in Pune.
Rafael Nadal is the oldest title winner in the history of the clay-court tournament.
Raducanu falls in first match since US Open triumph.
Defending champion Andy Murray eased into the Wimbledon quarter-finals for the 10th successive year with a 7-6(1), 6-4, 6-4 victory over Benoit Paire on Monday.
Coric was quick out of the blocks at the Qi Zhong Stadium as he broke in the opening game against the top seed and only lost five points on serve to clinch the first set in 34 minutes.
A summary of sports events and sports persons, who made news on Tuesday
British No 1 Cameron Norrie overcame a slow start to beat Frenchman Hugo Gaston 6-3, 7-5.
Novak Djokovic's intentions in organising the ill-fated Adria Tour were good but the world number one could have applied a bit more common sense to how the exhibition event was run, former ATP players' council head Vijay Amritraj said. The Serbian has faced fierce criticism after he, Grigor Dimitrov, Borna Coric and Viktor Troicki contracted COVID-19 following the charity event in Serbia and Croatia.
Yet the warrior-like instincts kicked in and we were all reminded that Nadal, as long as he is standing, remains a physical and psychological force of nature on a tennis court.
Apostolos immediately got up from his chair in shock and went up to the stands to sit with the rest of the Greek team while Tsitsipas, who was docked a point and warned by the umpire, received an earful from his mother Julia Apostoli.
Rafael Nadal will become the first man to win 21 Grand Slam titles if he defeats the Russian in Melbourne.
Swiss tennis maestro Roger Federer stepped up his bid for a record ninth Halle grasscourt title with a straight sets victory over Germany's Jan-Lennard Struff in the opening round on Wednesday.
Images from Day 4 of the Australian Open in Melbourne on Thursday
Roger Federer was made to work hard by Fernando Verdasco before beating the Spanish veteran 6-3, 3-6, 6-3 on Wednesday to reach the quarter-finals of the Dubai Duty Free Tennis Championships.
Roger Federer stared down defeat and saved two match points before knocking Tomas Berdych out of the Miami Open on Thursday with a 6-2, 3-6, 7-6(6) victory in their thrilling quarter-final.
Roger Federer and Rafael Nadal powered to third-round wins at the BNP Paribas Open at Indian Wells on Tuesday to set up a mouth-watering rematch of their recent Australian Open final.
Djokovic has not reached the last eight of a tournament since last year's Wimbledon and has struggled with a long-term elbow injury.
Not that cash will be the motivator for world number one Novak Djokovic, Rafa Nadal, Dominic Thiem, Tsitsipas, Daniil Medvedev, Alexander Zverev and debutants Andrey Rublev and Diego Schwartzman when the tournament's 50th edition starts on Sunday.
Spain's Rafael Nadal was at his dominant best against Pablo Carreno Busta on Saturday, brushing aside his compatriot 6-1, 6-2, 6-4 to move into the fourth round at the Australian Open. Images from Day 6 of the Australian Open at Melbourne Park on Saturday.
Australia's Alexei Popyrin was the last man standing, losing 7-6 (3), 6-3, 6-7 (10), 4-6, 6-3 to France's Lucas Pouille in their third round match.
Summary of sports events and persons who made news on Saturday
Australia eased ahead of Bosnia 2-0 as John Millman thumped Damir Dzumhur 6-3, 6-2 while Alex de Minaur overcame Mirza Basic 6-3, 7-6(0), before Millman revealed the team's larger goal under captain Lleyton Hewitt.
Angelique Kerber's recent revival faces its toughest test in the shape of Maria Sharapova when the only two former Australian Open champions in the women's draw clash in round three on Saturday. A cool front broke the grip
Nadal meets the 'new Nick' Kyrgios in fourth-round blockbuster
World No 4 Del Potro is still sidelined with a right knee injury sustained in Shanghai last month.
Medvedev squandered a two-set lead against Nadal in their previous meeting in the Melbourne final in January, allowing the Spaniard to clinch his 21st Grand Slam title.
IMAGES from Day 5 of the French Open at Roland Garros in Paris on Thursday.
Djokovic is the first man to reach 10 successive quarter-finals at the French Open
The Serb was knocked off top spot by Rafael Nadal on Monday despite winning the Paris Masters last week and will need a strong finish alongside the River Thames to snatch it back.
Images from Day 6 of Wimbledon at the All England Lawn Tennis and Croquet Club in London, on Saturday.
Copil, the World No 93, stunned second seed Alexander Zverev of Germany 6-3, 6-7 (6), 6-4 in the day's other semi-final.
World number one Novak Djokovic produced a majestic display in a 7-5, 6-3 victory over American John Isner on Thursday to extend his winning streak in Asia.
Images from Day 7 of the 2020 US Open in New York on Sunday.
World number one Novak Djokovic continued his dominant form in Tokyo to storm past Frenchman Lucas Pouille 6-1, 6-2 and into the semi-finals of the Japan Open.
Images from the Australian Open in Melbourne on Thursday.
Thiem, Wawrinka stay positive after defeats on return
American Sloane Stephens kept intact her streak of never having lost a final as she defeated Latvia's Jelena Ostapenko 7-6(5), 6-1 to claim the Miami Open title on Saturday.
Images from Day 6 of the US Open in New York, on Saturday.