Wednesday's viewers guide
WIMBLEDON, England -- It's a rivalry. There's no doubt about it. But Jennifer Capriati and Serena Williams did their best to portray it as a friendly rivalry on Tuesday.
The two meet for the 16th time on Wednesday. They've met twice before on grass, both times in the quarterfinals of Wimbledon. Capriati won in 2001 back when she was winning major titles. Serena won in 2003 when the same could be said of her.
Capriati has yet to drop a set so far here, while Serena has lost only 15 games so far. Serena leads their overall head-to-head edge 9-6, but Capriati has won the past two.
Federer hasn't lost a match on grass since the first round at Wimbledon in 2002. He needs only one more victory to share fifth place with Jimmy Connors on the list of longest grass-court win streaks in the Open Era. In addition, his serve has yet to be broken.
"I don't try to think too much of it, you know," Federer said. "I have to say every match so far has been, you know, quite unbelievable."
Paola Suarez of Argentina doesn't have the same problem. She reached the semifinals of the French Open and hopes to do so again at Wimbledon to shake off the label of being known only for strong doubles play.
"It's true that very often I'm seen as a doubles player, and people don't see what I do as a singles player," Suarez said. "Being here in the semifinals, I think that will help people also perceive me as a singles player."
Mauresmo seems under less pressure at Wimbledon, though, than at her home Grand Slam tournament in Paris.
"It took me a few years to understand how to play on this surface, and now I'm starting to feel comfortable," Mauresmo said. "So, it's very good feeling, actually."
In five meetings, Schalken has only managed to defeat Roddick once and that was in 2001. Roddick won their past two matches at majors in straight sets.
Roddick is one of three players -- Federer and Sebastien Grosjean are the others -- to not drop a set so far.
Henman has spent more time on court than any other quarterfinalist with 11 hours and 2 minutes, but he has reached the semifinals five times in seven appearances.
Ancic is the last player to defeat Federer at Wimbledon.
In the past two years, Grosjean has an 18-4 record on grass. That's the third most wins on grass by any active player.
Cynthia Faulkner is the tennis editor for ESPN.com.