FanHouse AndyRoddick

In a sport that has had a serious gambling scandal involving suspicions of match-fixing, how are we supposed to take Caroline Wozniacki's match the other day?

I'm starting to wonder exactly how many tennis matches aren't really on the up-and-up. Wozniacki, who reached the U.S. Open final, led Anne Kremer 7-5, 5-0 Tuesday at the Luxembourg Open.

And that's when Wozniacki chose to retire from the match with an injury. No broken bones. No fall. She had won seven straight games and was four points from winning.

"The injury suddenly happened," she said.

No way.

Three weeks. That's all Andy Roddick is expected to miss with the knee injury that knocked him out of the Shanghai Masters last week in the middle of his first-round match.

It should still give him time to qualify for the season-ending ATP World Tour Finals in London in November.

"Results of the MRI [scan] showed a mild sprain of his medial collateral ligament of the left knee," said a statement on Roddick's website. "The news was very good for Andy. No surgery will be needed and Andy is expected to make a 100 percent recovery."

SHANGHAI (AP) -- Reigning U.S. Open champion Juan Martin del Potro retired from the Shanghai Masters with a wrist injury Wednesday, adding to the mounting injury toll at the event.

The third-seeded Argentine was trailing Austria's Jurgen Melzer 7-5, 2-1 in his second-round match when he retired with an injury to his right wrist.

Del Potro said that he suffered from similar wrist tendinitis earlier this year.

Roger Federer beat Andy Roddick Sunday in an epic five-set Wimbledon men's singles final, a 5-7, 7-6, 7-6, 3-6, 16-14 classic that gave Federer an unprecedented 15th Grand Slam singles title.

"I just want to say congratulations to Roger," Roddick said afterward. "He's a true champion and he deserves everything he gets. ... It was a pleasure playing him today."

WIMBLEDON, England (AP) -- Venus Williams advanced to the quarterfinals at Wimbledon when opponent Ana Ivanovic retired one game into the second set Monday.

Williams, seeking her sixth Wimbledon title, led 6-1, love-1 when Ivanovic called it quits.

Ivanovic took a 10-minute break during the first game of the second set to have her left thigh taped by a trainer. She returned for two more points, but after hitting a service winner to take the game, she began crying as she walked to her chair and told the umpire she was retiring.

WIMBLEDON, England (AP) -- Andy Roddick has advanced to the fourth round at Wimbledon by defeating friend Jurgen Melzer, 7-6 (2), 7-6 (2), 4-6, 6-3.

Roddick had 32 aces Saturday, the final one on match point. He improved to 9-0 against Melzer, and he's 22-3 this year in tiebreakers.

I heard Michael Jackson died at approximately 5:30 PM ET. Hours later, I still don't think it's fully hit me. This was the man I idolized growing up as a kid ... I watched Moonwalker about 80 times on VHS (Joe Pesci was the villain). I once furiously outbid someone $159 for a replica Beat It jacket with 13 zippers. I actually have an 8x10 glossy of Billie Jean Michael taped next to my bedroom door.

Everyone -- from celebrities to sports stars to ordinary people -- had their way of trying to feel connected to the King of Pop. In his mere presence, fans have fainted and needed medical attention. So when news broke that Jackson had passed away, the reverberations on social media sites like Twitter were immense. Outspoken wide receiver Chad Ochocinco even went on to tweet "this is just as sad as 9/11" and then tried to play damage control after his offensive comment.

After the jump, read the emotional reactions from current and former athletes.

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WIMBLEDON, England (June 23) -- Andy Roddick's quest for a Wimbledon breakthrough is off to a strong start. The sixth-seeded Roddick displayed his powerful serve, and played nearly mistake-free tennis en route to a 6-3, 7-6 (3), 4-6, 6-3 first-round victory over Jeremy Chardy of France.

Roddick committed just nine unforced errors in the match, compared to 46 winners and 20 aces. He lost just eight points on his first serve.

WIMBLEDON, England (June 17) -- Rafael Nadal's French Open stumble failed to strip him of the world No. 1 ranking, and it won't cost him the top seed at Wimbledon either.

Nadal, the tournament's defending champion, was seeded No. 1 for Wimbledon on Wednesday. Top-ranked Dinara Safina, who lost to Svetlana Kuznetsova in the French Open final, earned the women's No. 1 seed.

There were no big surprises when the All England Club announced the seedings for the grass-court Grand Slam tournament, which opens June 22. The draw will be released Friday.

Gael Monfils delivered the best highlight of this year's French Open on Saturday when he slid for one shot and dove for another to win a point on his way to defeating Austria's Jürgen Melzer, 6-2, 4-6, 6-3, 6-1.