The Delhi lad was beaten by third seed Rainer Eitzinger of Austria.
Second seed Fernando Gonzalez and defending champion Ivan Ljubicic both suffered quarter-final exits from the Vienna Open on Friday, leaving world number three Novak Djokovic as the tournament's only remaining seed.
Twice champion Ivan Ljubicic scraped past Mardy Fish of the United States 6-7, 6-2, 7-6 in the Vienna Open second round.
Bob and Mike Bryan thrashed French duo Julien Benneteau and Edouard Roger-Vasselin 6-0, 6-3 to reach the final of the ATP World Tour Finals on Saturday.
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.
The 16-year-old backed his aggressive backhand throughout the contest and went on to win 17 of his 23 points at the net to seal victory in 61 minutes.
Fernando Gonzalez came back from a set down to beat Ivan Ljubicic 2-6, 6-3, 6-4 and reach the final of the China Open.
World No 7 Fernando Gonzalez stayed on course for his first title of the year a quarter-final victory over South Korea's Lee Hyung-taik at the China Open.
List of seeded players for the 2006 Australian Open.
Leander Paes and his Spanish partner Tommy Robredo scored a straight set victory over Ivan Ljubicic and R Soderling to storm into the doubles semi-finals of the Euro 2,270,000 Hamburg ATP Masters Series on Friday. The unseeded Indo-Spanish pair won 6-2, 7-6 (3) to set up a semi-final clash with the second seeded duo of Canadian D Nestor and Nenad Zimonjic of Serbia, who downed fifth seeded combine of S Aspelin (Sweden) and James Knowles (Austria) 6-2 5-7, 10-8.
Croatia's Mirjana Lucic-Baroni, who made the third round of the 1997 US Open also at 15, was the previous youngest player to advance to that stage of a grand slam.
At the heart of Friday's case lay an ICICI Bank loan owed by Mallya's Watson and CASL, for which Diageo stepped in as a backstop so that it could be refinanced by Standard Chartered Bank.
Stuns World No 1 Djokovic to win 'biggest title of career'
Inter Milan began their Serie A title defence with a 1-1 home draw with Udinese on Sunday after an Ivan Cordoba own goal in injury time, while AC Milan won 3-0 at promoted Genoa helped by Kaka's brace.
Tejinderpal Singh Toor clinched the men's shot put gold with a record-shattering throw to open India's medal account in athletics in the Asian Games, in Jakarta, on Saturday.
Top seeds Sania Mirza and Martina Hingis went through several anxious moments before getting past Russian girls Daria Kasatkina and Alexandra Panova in their opening doubles match at the French Open on Wednesday. The reigning Wimbledon, US Open and Australian Open champions prevailed 7-6(4), 6-2.
Prosecutors in Florida dropped charges of battery and stalking against Jennifer Capriati on Monday after the retired tennis player completed community service and an anger management class.
Leander Paes-Martin Damm will face Mahesh Bhupathi-Pavel Vizner in the quarter-finals of the Montreal Masters.
FC Barceloana laid out a memorable tribute to veteran midfielder Xavi Hernandez on Wednesday.
In the earlier match, Zverev beat Cilic -- the Croat's 9th loss in 10-round robin matches in the Finals
Philippe Coutinho's versatility makes him a great acquisition for Barcelona, coach Ernesto Valverde said on Sunday as the Brazilian made his first public appearance at the Nou Camp following his 142-million-pound ($192.57-million) move from Liverpool.
The seventh-seeded Bulgarian advanced to his eighth ATP World Tour Masters 1000 quarter-final with a 6-3, 7-5 victory over Del Potro, who struggled with the intense heat in the closing stages of the one hour, 39 minute match.
Sukanya Verma looks at 2019's winners and washouts so far.
Andy Murray and his coach Amelie Mauresmo have agreed to end their two-year working relationship, the British world number three said on Monday.
Russia's Anna Chakvetadze beat injury-hit top seed Jelena Jankovic of Serbia to win the women's title at the Den Bosch Open on Saturday, while Croatia's Ivan Ljubicic beat Dutchman Peter Wessels to win the men's.
Rediff.com Special Correspondent Deepti Patwardhan was a top winner in the second Indian Sports Journalism Awards held in Mumbai on Thursday.