Federer advanced to his 21st straight Grand Slam semifinal by straight-setting the giant-serving giant Ivo Karlovic.

Tommy Haas and Novak Djokovic have Grand Slam wins over Roger Federer. And Lleyton Hewitt has a grass win plus a best-of-five set win over the Swiss…

The Williams sisters are attempting to put at least one sister in the final for an amazing nine of the last 10 years.

“Today was hard to get through a really dangerous match,” Federer said. “Not many rallies, so maybe not as much fun for the people. But I stayed calm, waited for my chance.”

The Williams sisters remain on track for a second straight all-Williams final after younger sister Serena also advanced, brutalizing Daniela Hantuchova 6-3, 6-1. Venus has now won 31 consecutive sets at Wimbledon, the longest streak since Martina Navratilova’s 40 in a row in 1982-85.

“I don’t know why they don’t have lights here,” complained Haas. “I have never stopped a match a 6-6 before in the final set. It’s tough to come back but I’m happy to get through. I think they should be like the US Open and have a tiebreak in the final set,” Haas complained some more. “I could hardly get out of bed today, but the adrenaline took over.”

“[I] was just thinking that she was any other player, and this was any other match, and I was at any other tournament — you know, not, like, on the biggest stage, at Wimbledon, playing my first Top 10 player,” Oudin said. “I mean, I go into every match the exact same, you know, like, no matter who I play. It’s not, like, ‘Oh, my gosh, I’m playing the No. 1 player in the world.’”

Among other Top 10-seeded results, (4) Elena Dementieva was an easy 6-1, 6-2 winner over unheralded fellow Russian Regina Kulkova, (7) Vera Zvonareva handed an injury walkover to (26) Virginie Razzano, (8) Victoria Azarenka defeating (28) Sorana Cirstea 7-6, 6-3, and (10) Nadia Petrova stopped the run of the Sharapova-killer, Gisela Dulko, 6-3, 3-6, 6-4.

“I thought the rhythm was very high,” said Federer of his match with Kohlschreiber. “We played a lot of tough points. I really thought from my side it was an excellent match.”

Mauresmo will next meet Pennetta, Ivanovic against Stosur, Jankovic against Oudin, and the elder Williams will face Spanish comer Carla Suarez Navarro.