"Definitely a little relief," the sixth-seeded Williams said. "I was letting out a lot of cries. I was happy to get through that."
Yes, Williams got the job done, something she couldn't say the last time she was at a major championship. Last month at the French Open, the 30-year-old American tossed away a big lead nine times, she was two points from victory and lost to a woman ranked 111th, the only first-round exit of Williams' career in 48 Grand Slam tournaments.
"I learned that you got to ... keep going," Williams said about that stunning defeat. "I was really disappointed. Obviously, I was extremely disappointed. But as Kelly Clarkson says, 'What doesn't kill you makes you stronger.' "
Some other top players were sluggish at the start against unheralded foes Tuesday, when action was cut short in the evening because of rain.
Two-time Wimbledon champion Rafael Nadal, for instance, trailed 4-0 against 80th-ranked Thomas Bellucci of Brazil before turning it around and winning 7-6 (0), 6-2, 6-3.
"Fantastic for me," Nadal said, "but I have to improve a lot for the next round."
Defending women's champion Petra Kvitova fell behind 3-0 and 4-1 but eventually used a seven-game run to take control and beat 96th-ranked Akgul Amanmuradova 6-4, 6-4.
The match was halted by a 30-minute rain delay in the second set; when they returned, Kvitova needed all of three minutes to wrap things up.
Scoreboard. › D5
5 a.m., ESPN2