In doubles, probably for first time, six players are featuring in the men's draw.
The 85-ranked Indian lost his first round match 6-2, 3-6, 3-6, 2-6 in two hour and 38 minutes.
Leander Paes and Matthew Ebden continued their winning streak, beating Jonathan Erlich and Andrei Vasilevski 6-4, 3-6, 10-7 to enter the doubles final at the $1,62,000 Bengaluru Open ATP Tennis Challenger, in Bengaluru, on Friday.
India's Sumit Nagal put up a strong fight before going down in three sets to Serbian Vicktor Troicki in the men's singles opening round in the third edition of the Tata Open Maharashtra, in Pune, on Monday.
Halep sustained the injury last month while training for the Wuhan Open, where she lost in the second round. She then retired midway through her opener in Shanghai.
Wimbledon finalists Novak Djokovic and Roger Federer are on a semi-final collision course at the US Open after they were placed in the same half of the draw.
Federer and Nadal had both opted out of this year's tournament, while Djokovic exited in the fourth round after an infamous swat of his racket sent a tennis ball into a line judge's neck.
India's leading players Prajnesh Gunneswaran and Sumit Nagal lost in the pre-quarter-finals, ending India's challenge in the men's singles, of the Bengaluru Open, in Bengaluru, on Thursday.
Wawrinka, winner of three Grand Slam tournaments, trailed by two sets overnight, having squandered set points in the opener, but led 6-5 in the third when play resumed in muggy conditions.
Mischa still finds time to tease 'Sascha', despite his little brother's rapid ascent up the tennis rankings.
Top seed Somdev Devvarman won his match against Jordi Samper Montana of Spain via a walkover to set up a semi-final clash with his Indian compatriot Yuki Bhambri in the $50,000 ATP Challenger Tennis tournament in Chennai on Thursday.
India's top two singles players, Somdev Devvarman and Yuki Bhambri headed towards a possible semi-final clash in the $50,000 ATP Challenger event after beating their respective rivals in contrasting fashion in Chennai.
A marauding Ramkumar Ramanathan dished out yet another commendable performance, albeit in a losing cause as he exited from Chennai Open after an intensly-fought singles quarterfinal against world number 45 Aljaz Bedene on Friday. The gritty Indian youngster gave a terrific fight to a top-50 player and saved four match points before losing 7-6(5), 4-6, 3-6, battling hard for two hours and 13 minutes against Britain's number two player. "Ramkumar has made good progress. It was not easy. He was playing well and I was fighting. I was focusing on my game. It could have gone either way," Bedene said after the match. "I was practising with him here last year and he has made progress, specially his forehand. His serve has been superb. I was surprised," he added.
Somdev Devvarman joined compatriot Ramkumar Ramanathan in the singles main draw of the ATP Chennai Open with a come-from-behind victory over Briton James Ward in the final qualifying round in Chennai on Sunday.
Roger Federer began his latest quest for a 100th ATP title with a battling 6-4, 3-6, 6-1 win over Philipp Kohlschreiber in the first round of the Dubai Duty Free Tennis Championships on Monday.
Exodus of big guns opens up bottom half of men's draw
Djokovic is clubbed with Federer, Juan Martin Del Potro, David Goffin and Alexander Zverev.
A summary of the second day's play at the US Open.
A gutsy Ramkumar Ramanathan buried a sluggish start to eke out an inspiring win over Alexander Kudryavtsev and enter the men's singles quarterfinals of the Chennai Open on Thursday. Wild-card Ramkumar worked his way to a 3-6, 6-4, 6-4 win over higher-ranked Russian, who had entered the event as a Lucky Loser. He next plays world no.45 Aljaz Bedene, who defeated Luca Vanni 5-7, 6-3, 6-4.
Keeping in mind Italians' weakness on grass, India have opted for grass courts in South Club here for the February 1-2 fixtures which will be played in new format with the winners making a cut to the 18-nation finals in Madrid next year.
Former world No.1 Ana Ivanovic suffered a shock 6-7(4), 1-6 loss against Denisa Allertova of Czech Republic in the women's singles first round at the 2016 US Open on Tuesday. Ivanovic, the 2008 French Open winner, started off well but failed to maintain her momentum. With the scored tied 6-6, the first set went into tie-break and the Serbian star failed to keep her nerves.
Images from Day 1 of the Wimbledon Championships.
Yuki Bhambri advanced to the singles second round of the ATP Tashkent Open and reached the doubles quarter-finals, partnering compatriot Divij Sharan, following an upset victory over the top seeds on Tuesday.
Top seed Somdev Devvarman struggled past Ramkumar Ramanathan, who was troubled by cramps, but Yuki Bhambri made a fluent start with a straight sets victory in the US$ 50,000 ATP Challenger event, in Chennai.
IMAGES from the matches played on Day 4 of the Wimbledon Lawn Tennis Championships at All England Lawn Tennis and Croquet Club on Thursday
A summary of sports events and persons who made news on Friday
IMAGES from the Australian Open matches played on Monday
Images from Day 5 of the Australian Open in Melbourne on Friday.
Former world number one Andy Murray withdrew from the Brisbane International with a hip problem on Tuesday, further putting in doubt the Briton's prospects of being fit in time for the Australian Open later this month.