Since new Davis Cup reforms have been introduced, India will not have to go back to the Asia/Oceania Group immediately.
Wawrinka, making his first return to the site of his 2016 triumph since undergoing knee surgery, showed he was still shaking off the ring rust despite encouraging victories in the first two rounds.
Rafael Nadal and Novak Djokovic won their matches for their respective countries on Day 4 of the ATP Cup on Monday.
A summary of sports events and persons who made news on Friday
Leander Paes and his Canadian partner Dainel Nestor advanced to the second round of the men's doubles at Wimbledon, beating the Serbian pair of Victor Troicki and Dusan Lajovic 6-3, 6-4, 7-5 after an hour and 42 minutes on Wednesday.
Teeanger Borna Coric completed an unlikely comeback for Croatia as the small Balkan nation beat the United States 3-2 in a Davis Cup quarter-final in Oregon on Sunday.
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.
Summary of sports events and persons who made news on Saturday
Ramkumar Ramanthan gave his all but it was not enough to stop Laslo Djere from winning his first Davis Cup match as India trail Serbia 0-1 in the World Group Play-off tie, in Kraljevo, Serbia, on Friday.
World No 1 Novak Djokovic will miss Serbia's Davis Cup World Group playoff tie against India in Bangalore next weekend, the Balkan nation's coach Bogdan Obradovic said on Monday.
A summary of sports events and sports persons, who made news on Friday.
Serbian world number two Novak Djokovic forced the Davis Cup final against holders Czech Republic into a decisive fifth rubber on Sunday with a 6-4, 7-6(5), 6-2 win over Tomas Berdych in the opening reverse singles.
Alexander Zverev is a potential superstar who bears comparison not only with his fellow German Boris Becker but also the great American singer Bob Dylan.
The 24-year-old was staring at defeat while down a set and a break but dug deep to prevail in two hours 24 minutes for his 200th tour match victory and his 10th ATP title.
Rafael Nadal suffered a shock 7-5, 6-3 defeat by Austrian Dominic Thiem in the Madrid Open quarter-finals on Friday, a result that means the Spaniard will lose the world number one ranking.
Yuki Bhambri returned to India's Davis Cup squad for the World Group play-off tie against world No 2 Serbia, as the selectors named a six-member squad on expected lines. Somdev Devvarman, the country's No 1 singles player, will lead the squad.
World number one Rafael Nadal recovered from an upset loss against Belgium's David Goffin to win the deciding doubles match and send Spain into the semi-final of the ATP Cup teams event in Sydney in the early hours of Saturday. Spain will now play host nation Australia in the inaugural event, while Serbia, led by world number two Novak Djokovic, take on Russia.
Zverev needed treatment on his left hamstring in the second set and was clearly hampered as his close friend Thiem put him through the wringer with his trademark groundstrokes.
Images from Day 1 of the US Open in New York, on Monday.
Holders Czech Republic took a 2-1 lead over hosts Serbia in the Davis Cup final after Tomas Berdych and Radek Stepanek romped to a 6-2, 6-4, 7-6(4) win over Nenad Zimonjic and Ilija Bozoljac in Saturday's doubles.
Switzerland took advantage of Novak Djokovic's absence to open a 2-0 lead over last year's runners-up Serbia in their Davis Cup tie on Friday with Roger Federer and Stanislas Wawrinka winning their singles rubbers.
Veteran Indian tennis star Leander Paes today said that the dramatic victory he pulled off along with partner Rohan Bopanna against formidable Serbians was the best comeback effort of his Davis Cup career.
Rafael Nadal's season got off to a miserable start as his comeback from injury and illness stalled in the Qatar Open first round with a 1-6, 6-3, 6-4 defeat by German journeyman Michael Berrer.
apanese casual wear designer Uniqlo has signed the 36-year-old Swiss as a global brand ambassador in a deal reported to be worth around $30 million a year.
US Open, the final Grand Slam of the season, starts Monday, August 28, at Flushing Meadows in New York.
Marin Cilic completed a dream week by steering Croatia into the Davis Cup World Group on Sunday but Spain found themselves out in the wilderness after crashing to defeat in Brazil.
Roger Federer faced down local battler John Millman 4-6, 7-6(2), 6-4, 4-6, 7-6(8) in a five-set thriller on Friday night to reach the last 16 of the Australian Open. Defending champion Novak Djokovic thumped Japanese Yoshihito Nishioka 6-3, 6-2, 6-2 in the third round of the Australian Open on Friday to stay on course for a record-extending eighth title at Melbourne Park. Images from Day 5 of the 2020 Australian Open.
World No 2 Rafael Nadal brushed aside American Jared Donaldson 6-1, 6-1 and will next face Diego Schwartzman after the Argentine beat Roberto Carballes 6-3, 6-1.
World number two Simona Halep beat Maria Sharapova 6-2, 6-2 in the China Open third round on Wednesday for her first win over the Russian in eight attempts.
Roger Federer avoided any more security scares as he moved smoothly into the third round of the French Open on Wednesday but danger still lurks in the bottom half of the draw, namely in the shape of Japan's Kei Nishikori.
India's Davis Cup coach Zeeshan Ali feels that although world No 1 Novak Djokovic's participation will tilt the balance in Serbia's favour in the upcoming Davis Cup World Group play-off tie, it would be a tie worth remembering for the spectators.
Roger Federer suffered a shock 3-6, 6-3, 7-6(4) defeat to Australian wildcard Thanasi Kokkinakis on Saturday that will cost the Swiss his world number one ranking and leaves the Miami men's tournament wide open.
A summary of Tuesday's play at Wimbledon.
Images from the third day at the US Open, the final Grand Slam tournament of the year, in New York, on Wednesday:
Filip Krajinovic beat Yuki Bhambri 6-3, 6-4, 6-4 to give Serbia a 3-2 win in their deciding singles tie of the Davis Cup in Bangalore on Monday.
Former world number one Garbine Muguruza was beaten 7-5, 6-4 by Aryna Sabalenka in the China Open second round on Tuesday while an ailing Jelena Ostapenko lost 6-0, 6-0 to Wang Qiang.
Milos Raonic overcame third seed Grigor Dimitrov 7-5, 3-6, 6-3 to reach the third round at the Madrid Open on Tuesday and set up an all-Canadian clash with teenager Denis Shapovalov.
PHOTOS from day four of the Wimbledon championships at the All England Lawn Tennis and Croquet Club in London on Thursday.
A summary of sports events and sports persons, who made news on Sunday
Jelena Ostapenko became only the sixth female Grand Slam champion to lose in the opening round of their title defence on Sunday when she lost to Kateryna Kozlova at the French Open.