Former women's world number one Justine Henin of Belgium retired for the second time on Wednesday, citing an elbow injury that had dogged her since last summer.

"Today, the (medical) examinations are clear and the doctors are agreed that my elbow is too damaged for me to be able continuing with my passion and my job at a high level," Henin said on her internet site.

Britain's Andy Murray outgunned exciting newcomer Alexandr Dolgopolov to reach the Australian Open semi-finals, as Kim Clijsters and Vera Zvonerava set up a heavyweight last-four clash Wednesday.

Murray dropped his first set of the year against Ukrainian shot-maker Dolgopolov, 22, who dominated a third-set tie-break before going down 7-5, 6-3, 6-7 (3/7), 6-3, ending a breakthrough Grand Slam run.

Two points into the final game of his Australian Open quarterfinal against Roger Federer on Tuesday, Stanislas Wawrinka steadied himself to try returning a forehand smash.

Wawrinka playfully waved his racket over his head in a mock attempt to return it. Forget it, the ball sailed past him and Federer won the point.

North Korea may have tumbled out of the Asian Cup with just one point and having failed to score, but they have the hottest youth sides in the region and according to one scout the world's best new talents.

Representatives from top European clubs have flocked to the continental showpiece in the hope of picking out the next Hidetoshi Nakata, Park Ji-Sung or even a Lionel Messi.

Italy's Francesca Schiavone beat Russian Svetlana Kuznetsova 6-4, 1-6, 16-14 over 4hr 44min in the Australian Open's fourth round Sunday, the longest women's singles match in Grand Slam history.

The marathon encounter, including a three-hour final set, eclipsed the previous mark of 4hr 19min set by Barbora Zahlavova Strycova and Regina Kulikova in Melbourne last year.

Rafael Nadal overcame the much-hyped potential future star of Australian tennis in his quest for a fourth consecutive major title.

Despite a mostly parochial crowd of 15,000 at Rod Laver Arena, the top-ranked Nadal had a 6-2, 7-5, 6-3 win over 18-year-old wild card Bernard Tomic in an Australian Open third-round match Saturday. Nadal advanced to a fourth-round match against Marin Cilic.

The sport that has given Andre Agassi everything is giving him something more.

The baseliner known for his aggressive returns and career Grand Slam announced Thursday that he will be inducted into the International Tennis Hall of Fame, telling hundreds of students at a prep school he runs in Las Vegas that tennis has given him much more than eight major titles.

If Rafael Nadal is getting nervous as he eases closer to winning his fourth consecutive Grand Slam, he sure isn't showing it.

After his 6-2, 6-1, 6-1 win Thursday over American qualifier Ryan Sweeting, the Spanish star appeared as comfortable talking about his next match — against 18-year-old Australian Bernard Tomic — as he was in beating Sweeting so convincingly.

Arsene Wenger insists there are no problems between Arsenal team-mates Cesc Fabregas and Denilson after the Brazilian appeared to criticize the Gunners captain in an interview.

Speaking to Brazilian television, Denilson seemed to question Fabregas's leadership qualities saying: "Fabregas is the captain, but he is not a leader to me."

Venus Williams bravely battled through a painful injury to reach the Australian Open's third round as Spain's Fernando Verdasco survived a trademark five-set thriller.

Women's world number one Caroline Wozniacki finally hit form on Wednesday and American Andy