Federer, a six-time winner at the All England Club, won 37 of 41 points on his first serve and 21 of 23 points at the net against Fognini, an Italian ranked 68th. He and Fognini stood side by side as they bowed awkwardly toward the royals, and Charles responded with a wave and grin. He visited with the royal couple afterward for several minutes, talking about tennis, polo and Federer's young twin daughters. "They were very nice, very sweet and thought I played great," Federer said, "which was very nice to get some compliments after the match, which was unnecessary, but of course I do appreciate it." Shortly after Federer's victory, rain interrupted play, and the retractable roof on Centre Court was closed for the first time in the tournament. 1 Caroline Wozniacki lost under the cover to Tamira Paszek, who saved two match points in the second set and won 5-7, 7-6 (4), 6-4. Other Grand Slam champions advancing included Kim Clijsters and Andy Roddick, while reigning U.S. Open champion Samantha Stosur lost. More than 20 matches on outside courts were postponed until Thursday. In the final set, Stephens trailed love-30 in four consecutive service games, yet won them all. "I'm 19 and I do still have some lapses," she said. They're less now than I used to have in the past. I really don't get as upset when I lose points now. I'm not that emotional anymore. Stephens is coming off her first run to the fourth round at a Grand Slam tournament, which happened this month at the French Open.