Nadal crashes out in Halle
June 15, 2012 -- Updated 1957 GMT (0357 HKT)
Rafael Nadal has never progressed beyond the quarter-finals at Germany's Halle Open.
- Rafael Nadal loses to Philipp Kohlschreiber in Halle Open
- German wins 6-3 6-4 to inflict Nadal's first defeat in 14 matches
- Roger Federer beats Milos Raonic to book place in semi-finals
- Marin Cilic, Grigor Dimitrov, David Nalbandian and Sam Querrey make last four at Queen's
(CNN) -- Rafael Nadal's Wimbledon preparations suffered a hitch as he fell to a shock straight-sets defeat to Germany's Philipp Kohlschreiber in the quarter-finals of the Gerry Weber Open.
Nadal went down 6-3 6-4 to defending champion Kohlschreiber in the grass court event in Halle, Germany.
Nadal was playing in his first singles tournament since he won the French Open at Roland Garros last week.
The defeat, Nadal's first in 14 matches, continues the world number two's poor record at Halle.
His only previous visit to the tournament, in 2005, ended in a first round defeat to Alexander Waske.
Kohlschreiber, ranked 28 in the world, had never previously beaten Nadal in eight attempts.
Nadal said he planned go back home to Mallorca and recover from a punishing clay court season, ahead of Wimbledon.
Rafael Nadal on French Open triumph
"I can't practise on grass there but it's better not to practise for a few days. It's time to rest with my family, friends, to relax," said the Spanish star.
"I've played almost every match possible since Indian Wells. When I'm ready to come back, I'll go to Wimbledon."
World number three Roger Federer fared better at the German tournament.
He reached the semi-finals with a 6-7 6-4 7-6 win over Canada's Milos Raonic and will face Russia's Mikhail Youzhny for a place in the final.
In the Aegon Championships at London's Queen's Club, Taiwan's Lu Yen-Hsun was forced to retire from his quarter-final against Marin Cilic after playing two matches in the space of a few hours.
The world number 57 earlier clinched a shock 6-3 2-6 7-6 victory over third seed Janko Tipsarevic.
But just a couple of hours later, while was trailing 6-4 2-0 against sixth seed Cilic, he quit with a leg injury.
Bulgarian youngster Grigor Dimitrov joins Cilic in the last four after winning a rain-interrupted clash against South Africa's Kevin Anderson.
He will play David Nalbandian in the last four after the Argentine defeated Belgium's Xavier Malisse 4-6, 7-6 (7/2), 6-4.
In the other quarter-final, 2010 champion Sam Querrey beat Croatia's Ivan Dodig in three sets.
Part of complete coverage on
December 5, 2013 -- Updated 1517 GMT (2317 HKT)
South Africa may just have found another Paralympian to inspire a nation -- and perhaps the world.
November 26, 2013 -- Updated 1253 GMT (2053 HKT)
Marion Bartoli's tennis career had its ups and downs -- both personal and professional. Discover what has made the Wimbledon winner happy.
November 22, 2013 -- Updated 1654 GMT (0054 HKT)
Maria Sharapova has turned to her third coach of 2013 as she seeks to bounce back from shoulder problems.
November 21, 2013 -- Updated 1158 GMT (1958 HKT)
Hitting partner Sascha Bajin and coach Patrick Mouratoglou offer a glimpse into the life of the world No. 1.
November 29, 2013 -- Updated 1706 GMT (0106 HKT)
Down and out in Paris, Serena Williams turned to a man who has helped her become more dominant than ever before.
November 20, 2013 -- Updated 1003 GMT (1803 HKT)
World Anti-Doping Agency president John Fahey tells CNN he doesn't think Novak Djokovic "has the faintest idea" what his organization does.
The Davis Cup can step up to a new level of popularity by following the example of football's top tournament, says CNN's Will Edmonds.
November 12, 2013 -- Updated 1546 GMT (2346 HKT)
A year that began with a fourth Australian Open title ended similarly triumphant for Novak Djokovic at the ATP Tour finale.
CNN's Will Edmonds says Serena Williams can match Steffi Graf's record haul of 22 grand slam titles following her U.S. Open triumph.
September 9, 2013 -- Updated 1224 GMT (2024 HKT)
Two years after losing part of her lung during a blood clot operation, U.S. Open champion Serena Williams insists playing tennis "is just fun now."
September 4, 2013 -- Updated 1130 GMT (1930 HKT)
Her doubles playing dad is the sporting star of the family, but Micaela Bryan's Twitter page is making the toddler a viral sensation.
Roger Federer is now in danger of diminishing his incredible tennis legacy, says CNN's Will Edmonds.
August 27, 2013 -- Updated 1107 GMT (1907 HKT)
Tennis parents don't have the best of reputations. Think Damir Dokic, John Tomic and Jim Pierce. However, Andy Murray's Mum is very different.
August 15, 2013 -- Updated 1421 GMT (2221 HKT)
Marion Bartoli has retired from tennis with immediate effect, just six weeks after winning her first grand slam title at Wimbledon.
November 19, 2013 -- Updated 1310 GMT (2110 HKT)
When the women's singles champion at the U.S. Open picks up her $2.6 million check, she should spare a moment to thank Billie Jean King.
Today's five most popular stories