Federer is the king of grasscourt secret society

LONDON: Roger Federer celebrated reaching his 21st consecutive Grand Slam semifinal by admitting there are few players who can match his deep reserves of grasscourt secrets.

The five-time Wimbledon champion is just two wins away from capturing a record 15th Grand Slam title and having become the first man at the 2009 championship to break the serve of Croatian giant Ivo Karlovic, he left his remaining rivals in no doubt as who is the grasscourt king.

"Maybe I like to play short points. I don't mind playing one-, two-shot rallies. I also don't mind longer rallies. I think especially on grass, all my strength becomes even better. I become so much more dangerous," said Federer.