Novak Djokovic is bidding to win the title for the first time since 2015 and equal Roger Federer's six.
Top seed Dominic Thiem survived an early scare and fought back from a set down to beat Argentina's Diego Schwartzman 3-6, 6-4, 6-3 and win his first Vienna Open title on Sunday.
Rafael Nadal dropped a set at Roland Garros for the first time in two years but roared back to beat 10th seed Diego Schwartzman 6-3, 4-6, 6-4, 6-0 on Wednesday and storm into the French Open semi-finals.
With Roger Federer and 2018 champion Novak Djokovic having already made exits, Nadal's path to a fourth US Open trophy has been cleared of familiar hurdles.
Novak Djokovic survived a scare at the French Open to beat unseeded Argentine Diego Schwartzman in five sets.
Rafael Nadal gets the opportunity to avenge his only defeat in 10 meetings with Diego Schwartzman, which he suffered a little over two weeks ago, when Spain's 12-time French Open winner faces the Argentine in the semi-finals at Roland Garros on Friday.
Ramkumar, who ended a runner-up at the Newport event last week, lost 4-6, 4-6 to American Taylor Fritz.
Argentina's Diego Schwartzman ended a two-year wait for his second ATP tour title as he overpowered an exhausted Fernando Verdasco to win the Rio Open 6-2, 6-3 on Sunday.
Ace Indian tennis player Sumit Nagal was off to a winning start in Monte Carlo Masters as he defeated world number 63 Flavio Cobolli of Italy in straight sets in the qualifiers in Monte Carlo on Saturday.
Swiss great Roger Federer is due to take to the court later in the day for the final match of his career, with the 41-year-old partnering his great rival Rafael Nadal to face the American duo of Sock and Frances Tiafoe.
The second round match between former champion Angelique Kerber and Anhelina Kalinina, originally scheduled to begin after Schwartzman and Anderson, was pushed to Thursday.
Cutting a classy figure and looking all dapper for the Laver Cup gala dinner on Thursday night, Roger Federer played a few minutes of table tennis against Argentine Diego Schwartzman, tux and all!
Images from Day 13 of the French Open, at Roland Garros, in Paris.
The world number one overcame a sluggish start to defeat Argentine Diego Schwartzman 7-5, 6-3 for a record 36th ATP Masters crown.
18-year-old Carlos Alcaraz of Spain became the youngest to clinch an ATP 500 title at the same event on Sunday when he defeated Diego Schwartzman in the final of the Rio Open.
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.
Novak Djokovic, Rafael Nadal and Johanna Konta progressed to the Italian Open semi-finals on Friday, but Roger Federer and Naomi Osaka were forced to withdraw with injury problems. World number one Osaka pulled out of her quarter-final meeting with Kiki Bertens due to a thumb injury before 37-year-old Federer announced his withdrawal because of a problem to his right leg.
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.
Carlos Alcaraz swatted aside Serbian Dusan Lajovic as Canadian Bianca Andreescu cruised past American Sofia Kenin in straight sets at Miami Open.
Germany Jan-Lennard Struff has also withdrawn from the US Open, the USTA said.
The Bhupathi-Melzer pair lose in straight sets to Argentine team of Diego Schwartzman and Horacio Zeballos.
Nadal committed 30 unforced errors to Schwartzman's 17 and had his serve broken five times.
Rising star Brandon Nakashima handed fellow American John Isner a first round defeat at the Indian Wells.
Bulgarian Grigor Dimitrov smashed three rackets on his way to losing the Istanbul Open final to Argentine Diego Schwartzman on Sunday.
Top seed Carlos Alcaraz cruised into the quarter-finals of the Queen's Club Championships.
Top-seeded Novak Djokovic was handed a danger filled path to the final of the US Open and a possible showdown with No 2 Roger Federer after Thursday's draw for the season's final Grand Slam.
Rafael Nadal may have won the French Open a record 12 times but the Spaniard feels this year's conditions will be the most difficult he has ever faced at Roland Garros and mean he must be at his best to have a chance of retaining his title again.
Nadal will resume his fight to stay in the French Open on Thursday
World number one Novak Djokovic had enough on his plate already on Wednesday without marauding Russian Daniil Medvedev pummelling him to a shock 6-3, 6-3 defeat at the ATP Finals.
ATP Tour remembered Maradona with a social media post saying "A champion and icon loved by all", accompanied with a picture of Maradona with Federer.
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.
Top seed Nadal extended his winning streak to 13 matches with a 6-2, 6-1 demolition of American Jared Donaldson in the Qi Zhong Stadium before World No 2 Federer, to the delight of his sizeable Chinese fan club, got the better of Argentina's Diego Schwartzman 7-6(4), 6-4.
IMAGES from the French Open matches played on Thursday
Rafael Nadal set up an Italian Open semi-final with Stefanos Tsitsipas on Friday thanks to a 6-4, 6-0 win over Fernando Verdasco.
Things to watch out for on Day Six of the French Open on Friday:
It will be the second time Nadal and Del Potro meet at Roland Garros. The previous match up saw the Spaniard beat Del Potro in straight sets in the opening round in 2007.
Rohan Bopanna and Daniel Nestor went through several anxious moments before making it to the second round, even as Mahesh Bhupathi and Jurgen Melzer failed to, in the men's doubles at the Australian Open, in Melbourne, on Thursday.
Murray to practise with Djokovic in Rome before return from injury.
Roger Federer was given a fright before reaching the semi-final of the inaugural Istanbul Open.
Paire was handed a code violation by umpire Mohamed Lahyani for unsporting conduct -- triggering a heated response.