Andy Roddick is not ready for retirement just yet.

A day after surprisingly announcing the U.S. Open will be the last tournament of his career, Roddick dominated Australian teenager Bernard Tomic from start to finish Friday night in Arthur Ashe Stadium and reached the third round with a 6-3, 6-4, 6-0 victory.

"I had no idea what was going to happen out there," Roddick said. "I've played a lot of matches and that was a different kind of nerves than I've had before, so that was surprising for me."

Sharapova, NBA's Sasha Vujacic split

Forget about Maria Sharapova's tennis, which is going quite well at the moment. She dropped a bit of off-court news at the U.S. Open on Friday, saying she's no longer engaged to professional basketball player Sasha Vujacic.

At her pos-tmatch news conference following a 6-1, 6-1 victory over NCAA runner-up Mallory Burdette to reach the fourth round, four-time Grand Slam champion Sharapova said her relationship with Vujacic has been over "since the end of spring, actually."

"I was waiting for someone to actually ask me that question, but nobody did, directly," Sharapova said.

She added: "It was obviously a challenging decision, you know, from both of our ends."

Word of their engagement came in October 2010, when Vujacic said he had proposed on the one-year anniversary of their first meeting at a friend's barbecue.

There hasn't been much to talk about this week when it comes to her matches. The third-seeded Russian has yet to be tested, losing a total of seven games through three matches so far.

— The Associated Press

Roddick, the 2003 U.S. Open champion and former No. 1-ranked player, took the time to look around the packed stadium, eyeing people dancing in the stands during changeovers and taking it all in — in case this was it. But he will get to play at least one more time before walking away from professional tennis, against 59th-ranked Fabio Fognini of Italy.

"I look forward to it," the 20th-seeded Roddick said during an on-court interview with one of his former coaches, Brad Gilbert, "and I'm going to try to stick around a little longer."

By the sound of their repeated ovations, and the sight of all their camera flashes, the supportive crowd of about 24,000 or so would love to see that.

Roddick turned 30 on Thursday, and held a news conference to say he would quit after a season of injuries and poor results at Grand Slam tournaments. But he sure looked good against the 43rd-ranked Tomic, hitting 13 aces, including on the final point.

With that, Roddick flashed a smile as wide as can be.

"Oh, man. That was so much fun. I really appreciate that," Roddick told the crowd. "Thank you, guys."

Asked whether he got emotional while preparing for what could have been his final appearance as a professional tennis player, Roddick said: "I've been trying to be good all day. Had a rough patch there, about 15 minutes before the match. Made the mistake of walking by one of the TVs while they were doing slow, dramatic things. I assume it was set to an '80s ballad. It got me a little bit."

Perhaps it was just a coincidence, but one such song, Journey's "Don't Stop Believin"' from 1981, was ringing through the arena as Roddick left for the locker room.

That's the sort of wit Roddick became as known for as his big, big serve — he used to hold the record of 155 mph — and his superb forehand, along with an unbending competitive streak. In addition to his U.S. Open trophy, the last Grand Slam singles title for an American man, Roddick lost four major finals, all to Roger Federer.

While the players warmed up on court before the match, the stadium announcer noted that Roddick was "competing in his final U.S. Open," and so he let out a deep exhale, then lifted his racket to acknowledge the fans' applause. He made sure to pay attention to every detail, even getting rid of one tennis ball in the second set's second game after pointing out to the chair umpire that it was the sort of red-logo ball used for women's matches.

More in the tank

That this was not going to be a final farewell became clear right away. Roddick hit three aces in the very first game — two at 136 mph, another at 138 mph — and added two more — at 125 mph, then 134 mph — while moving out to a 3-0 lead. And he enjoyed himself out there, skipping back to the baseline after one early overhead smash, and looking up to his mother and brother and coach after capping the opening set with a 136 mph ace.

After a sliding, stretching volley winner early in the third set, part of a run of eight games to end things, Roddick threw his arms overhead and waved them as some spectators leaped to their feet.

Not only was Tomic outclassed, but by the late stages, TV commentator and seven-time major champion John McEnroe was telling ESPN2 viewers that the Australian maybe should be fined for lack of effort.

Asked about that assessment, Tomic initially responded casually, saying: "Well, I think he's probably right."

But when pressed some more, Tomic bristled at a reporter and said, "That's how I play. If you think that's that, it's up to you. What is your name?"

When the reporter told him, Tomic replied: "I'll remember you."

The 19-year-old Tomic is not a nobody; at Wimbledon last year, he became the youngest quarterfinalist since Boris Becker in 1986, and then he finished the season as the youngest member of the top 100 in the ATP rankings.

But this was Roddick's night, a celebration of his career and a chance to extend it.

Shortly after the match, a TV interview with Roddick was interrupted by a group of fans chanting, "One more year! One more year!"

That's probably not going to happen.

But there will be at least one more match for Roddick.

Other men's winners Friday included defending champion Novak Djokovic, 2009 champion Juan Martin del Potro and 2001 champion Lleyton Hewitt, who came back to beat Gilles Muller 3-6, 7-6 (5), 6-7 (5), 7-5, 6-4.

Hewitt's a year older than Roddick and said it was "a little bit surprising" that the American made his retirement known in the midst of a tournament.

"He obviously just felt like the time is right. Everyone is different," said Hewitt, who also won Wimbledon in 2002 and has dealt with a series of health issues, including hip and toe operations. "For me, I feel like I've done all the hard yards coming back from surgery. I sort of want to go out on my terms a little bit more."

Del Potro, who is seeded seventh, eliminated one of the young U.S. men expected to succeed Roddick near the top of the game, 20-year-old Ryan Harrison.

"There's some people that are going to speculate he might have more energy and success left in him, but he's not a guy who wants to do it halfway. And that's something he's taught me and I respect that about him," Harrison said. "He could easily coast through and play Slams next year and be winning a lot of matches, etc., etc., but if he can't give himself a chance to win the tournaments, he doesn't want to play and that's why I think he decided what he decided."

Stosur survives test

Defending women's champion Sam Stosur cruised into the fourth round, where she will face a teenager who has defeated former Grand Slam winners in her last two matches.

Eighteen-year-old Brit Laura Robson, who ended Kim Clijsters' career two days earlier, knocked out 2011 French Open champ Li Na 6-4, 6-7 (5), 6-2 on Friday.

Kim Clijsters advances in mixed doubles

Kim Clijsters's final tournament will last at least one more match, after she and mixed doubles partner Bob Bryan won in the first round of the U.S. Open on Friday.

Clijsters and Bryan beat young Americans Irina Falconi and Steve Johnson 6-2, 6-2. Afterward, Clijsters took part in the Bryan brothers' signature chest bump then grinned widely.

They could have faced Mike Bryan in the second round, but he and Lisa Raymond, seeded second, were upset.

Clijsters, a four-time Grand Slam champ, is retiring after the Open and lost in the second round in singles.

The Bryans, 11-time major winners in men's doubles, won their second-round match 6-3, 6-2 over Eric Butorac and Paul Hanley.

The Williams sisters also won their second-round match. Serena and Venus defeated Klaudia Jans-Ignacik and Kristina Mladenovic 6-4, 6-0.

— The Associated Press

The 89th-ranked Robson had never been past the second round of a major tournament or beaten a top-10 opponent before this year's U.S. Open. Now she's done both after eliminating the ninth-seeded Li.

Robson put her hands to her head in shocked joy after the Chinese star returned her serve long on the final point.

Stosur was pushed for the first time in this year's Open by American Varvara Lepchenko, but dominated the second set after winning the first in a tiebreaker.

The seventh-seeded Stosur won 7-6 (5), 6-2. She had dropped just five games through her first two matches.

It was still a successful Open for the 31st-seeded Lepchenko. After reaching at least the third round in three straight Grand Slam events, she'll likely climb into the top 30 in the rankings.

Meanwhile, No. 3 seed Maria Sharapova won 12 of the last 13 points of her match to defeat NCAA runner-up Mallory Burdette 6-1, 6-1 and advance to the fourth round.

Sharapova, who completed the career Grand Slam earlier this year at the French Open, needed only 58 minutes at 90-degree Arthur Ashe Stadium to wrap up the win over Burdette, who will be a senior at Stanford this year.

Sharapova has not been tested so far this year at Flushing Meadows, losing a total of seven games over her first three matches.

Since winning the U.S. Open in 2006, this is only the second time Sharapova has advanced to the round of 16.

For the second time in three matches, top-seeded Victoria Azarenka of Belarus dropped only a single game, beating No. 28 Zheng Jie of China 6-0, 6-1 to also advance to the fourth round.

Azarenka, who won the Australian Open to start the Grand Slam season, finished in 59 minutes and the fans were headed home by 10:15 p.m. — another early finish at Arthur Ashe Stadium.

In other results:

Men's singles

Second round

  • David Ferrer (4), Spain, def. Igor Sijsling, Netherlands, 6-2, 6-3, 7-6 (12).
  • Steve Johnson, United States, def. Ernests Gulbis, Latvia, 6-7 (3), 7-6 (5), 6-3, 6-4.
  • Richard Gasquet (13), France, def. Bradley Klahn, United States, 6-3, 6-3, 6-1.
  • Leonardo Mayer, Argentina, def. Tommy Robredo, Spain, 6-1, 6-4, 4-6, 7-5.
  • Alexandr Dolgopolov (14), Ukraine, def. Marcos Baghdatis, Cyprus, 6-4, 3-6, 6-0, 7-6 (5).
  • Stanislas Wawrinka (18), Switzerland, def. Steve Darcis, Belgium, 6-7 (6), 6-3, 4-6, 6-1, 7-5.
  • Janko Tipsarevic (8), Serbia, def. Brian Baker, United States, 6-4, 6-3, 6-4.
  • Fabio Fognini, Italy, def. Guillermo Garcia-Lopez, Spain, 6-4, 6-4, 6-2.
  • John Isner (9), United States, def. Jarkko Nieminen, Finland, 6-3, 6-7 (5), 6-4, 6-3.
  • Grega Zemlja, Slovenia, def. Cedrik-Marcel Stebe, Germany, 6-4, 2-6, 6-4, 6-4.
  • Julien Benneteau (31), France, def. Dennis Novikov, United States, 3-6, 6-4, 7-6 (1), 7-5.
  • Philipp Kohlschreiber (19), Germany, def. Benoit Paire, France, 6-7 (4), 6-3, 3-6, 6-2, 7-6 (4).

Women's singles

Third round

  • Marion Bartoli (11), France, def. Kristina Mladenovic, France, 6-2, 6-4.
  • Laura Robson, Britain, def. Li Na (9), China, 6-4, 6-7 (5), 6-2.
  • Petra Kvitova (5), Czech Republic, def. Pauline Parmentier, France, 6-4, 6-4.
  • Nadia Petrova (19), Russia, def. Lucie Safarova (15), Czech Republic, 6-4, 7-5.
  • Anna Tatishvili, Georgia, def. Mandy Minella, Luxembourg, 7-5, 6-0.