NEW YORK -- Two-time U.S. Open champion Monica Seles got in trouble early and never quite recovered Sunday, eliminated by 18-year-old Daja Bedanova 7-5, 4-6, 6-3 in the round of 16.

It was the earliest elimination for Seles at the Open since her wins here in 1991-92. She missed the event the next two years, recovering from a knife attack in Munich. She reached the finals in her first two years back and four straight quarterfinals since then.

Seles, seeded No. 7, was doomed by 51 unforced errors. She saved one match point before ending a long rally by netting a return on the second.

Top-seeded Martina Hingis fell behind Jelena Dokic 3-0, then won 12 of the final 13 games for a 6-4, 6-0 victory. Hingis, seeking her first Grand Slam title in 2{ years, plays Bedanova in the quarterfinals Tuesday.

No. 10 seed Serena Williams dropped the most sets out of any match so far, but she still defeated Justine Henin, seeded sixth, in straight sets 7-5, 6-0.

Williams will play former champion Lindsay Davenport, who was in danger of falling out of the tournament but recovered just in time, defeating Elena Likhovtseva 6-3, 0-6, 6-3.

Davenport, seeded No. 3, won the first set routinely, but then played sluggish, distracted tennis, troubled by the wind, and lost the second set at love.

At one point, she complained about a call to chair umpire Leanne White, saying, "Not paying attention, or what?"

Davenport knew she had been through a struggle, especially in the second set. "I just didn't play well," she said. "The conditions were rough. I didn't handle them appropriately. I didn't feel I had good control of the ball. I was looking forward to the third set.

"I have to try and get better and get better, get more confident, get a little bit more concentrated or have a better game plan next time."

After swapping service breaks with Likhovtseva at the start of the third set, Davenport broke the 21st-seeded Russian again and took control of the match. She punctuated her victory with five aces and a serve that averaged 98 mph.

Davenport's victory was accomplished despite 35 unforced errors. She finished Likhovtseva on her third match point.

The victory sent Davenport into the quarterfinals at the Open, a familiar spot for her. The 1998 Open champion has been to the quarters of every Grand Slam she's played in the past four years except the 2000 French Open, where she lost in the first round. She skipped the French this year because of a right knee bone bruise.