Viewer's guide for Monday
WIMBLEDON, England -- Because of the rain, the player who gets through might end up playing nearly every day. So fitness, more than ever will come into play.
"I know, especially now, if I keep winning, it's going to be almost like every day," Jennifer Capriati said. "I've played every day already. That's usually not what happens in a Grand Slam."
Plus there are the delays to deal with.
"You sit around," Capriati said, "you start to get a little bit -- it's hard to not just get sluggish and just kind of, you know, lose that quickness. That's one of the toughest things."
Capriati, who is seeded seventh, will be playing No. 10 seed Nadia Petrova of Russia in the fourth round on Tuesday.
If Capriati wins, she'll most likely meet Serena Williams, who was asked to assess her most recent nemesis' attitude on Sunday.
"She's really excited about life," Serena said. "I think she's really happy to be doing so well in her career still. I just always see her really more optimistic about things."
Serena didn't know who her fourth-round opponent was until Monday when Tathiana Golovin defeated Emmanuelle Gagliardi.
Here's a look at Monday's matchups.
Hewitt, usually more known as a counter-puncher, has not dropped his serve in 40 consecutive games. Moya will be the first right-hander Hewitt has faced in the tournament.
If Moya wins, he'll be the first Spaniard to reach the Wimbledon quarterfinals since 1972. Only two have ever reached the quarters in the Open Era (1968): Andres Gimeno (1970) and Manuel Orantes (1972).
These two have never met before, so it will be interesting to see how Federer reacts to the tallest player on tour at 6-foot-10. In three matches so far, Karlovic has served 95 aces.
Cynthia Faulkner is the tennis editor for ESPN.com.