Exhausetd Nadal out of German event
Rafael Nadal admitted that fatigue played a part in his quarter-final defeat to Philipp Kohlschreiber at the Gerry Weber Open.
The Spaniard had no time to rest after claiming his seventh French Open and went straight from Roland Garros to Halle.
But he was unable to get past the last eight at the German venue and crashed out to the home favourite in straight sets.
The world number two had been on a run of 13 matches unbeaten but he had nothing left in the tank and went down 6-3 6-4 on his 2012 grass-court debut.
The left-hander will now head back to his Majorcan home to rest ahead of Wimbledon and he confessed that his usual powers of stamina waned on Friday after playing so many matches in recent weeks.
"I said it was going to be tough," said Nadal. "He plays well on this court. You just have to congratulate him.
"He played very aggressively, served well, returned well. He played better than me. I was suffering when he was serving. I didn't have that energy to change the situation."
Kohlschreiber will play Tommy Haas in the last eight after the German beat third seed Tomas Berdych 6-4 3-6 7-5.
Second seed Roger Federer is still in the event after beating Milos Raonic 6-7 (4-7) 6-4 7-6 (7-3) and he will now play Russia's Mikhail Youzhny, who beat Radek Stepanek 6-4 4-6 6-4, as he looks for his sixth title.