NBC Sports: Tennis

ITF ‘disappointed’ in Agassi’s crystal meth use

In response to an admission in Andre Agassi’s upcoming autobiography that he used crystal meth in 1997, the International Tennis Federation says it is “surprised and disappointed.”

Agassi used crystal meth, then lied about it

Andre Agassi’s upcoming autobiography contains an admission that he used crystal meth in 1997 and lied to tennis authorities when he failed a drug test — a result that was thrown out after he said he “unwittingly” took the substance.

Serena, Safina will battle for No. 1 in Dubai

After months of debate about who is more deserving of the No. 1 ranking, Serena Williams and Dinara Safina will settle the issue on the court at the WTA Tour’s season-ending Sony Ericsson Championships.

Weird betting patterns in Wozniacki match

Tennis authorities are looking into a WTA Tour match involving U.S.

Video: 2009 ATP Championship preview

Harry Cicma predicts either Djokovic or del Potro will win this year (NBC Sports)

Sampras says Federer will win more Slams

Pete Sampras predicts Roger Federer still has a few more Grand Slam titles to win despite his recent loss in the U.S. Open final.

Stosur beats Schiavone to win first singles title

OSAKA, Japan (AP) -Third-seeded Samantha Stosur of Australia earned her first WTA singles title Sunday with a 7-5, 6-1 win over Italy's Francesca Schiavone at the Japan Women's Open.

Nadal to play Davydenko in Shanghai final

Wickmayer, Kvitova reach Generali Ladies final

LINZ, Austria (AP) -Yanina Wickmayer of Belgium and Petra Kvitova of the Czech Republic advanced to the final of the Generali Ladies on Saturday after straight-set wins over the top two seeds.

Nadal to play Davydenko in Shanghai final

Davydenko tops Djokovich, while Nadal advances after Lopez became ninth player to retire from the tournament.

Kvitova reaches Generali Ladies final

LINZ, Austria (AP) -Petra Kvitova of the Czech Republic upset second-seeded Agnieszka Radwanska of Poland 6-3, 6-2 Saturday to reach her second final of the season at the Generali Ladies.