Halle, Germany:One day after losing to Rafael Nadal in the French Open final, top-ranked Roger Federer pulled out on Monday from the Gerry Weber Open in Halle, his traditional grass-court warmup for Wimbledon.
Federer has won the Halle event the last four years - and went on to win Wimbledon each time after that.
"In an attempt to prevent injury after the long final in Paris, I cannot defend my title at the Gerry Weber Open in Halle," Federer said in a brief statement on his Web site.
Federer lost to Nadal in four sets in Paris on Sunday, again missing an opportunity to complete a career Grand Slam. He has won 10 Grand Slam titles.