All-Chinese Final In Warsaw?

WARSAW, Poland - Caroline Wozniacki saw her Polsat Warsaw Open dreams come to an end on Thursday, losing the first set of her quarterfinal match against Zheng Jie before retiring due to a right ankle injury.

Watch Video --> Live Matches from Warsaw on TennisTV!

Wozniacki, who had actually lost two of her three previous meetings with Zheng, got broken in the sixth game of the match and couldn't recover, losing a lengthy 56-minute set, 6-3, then calling it quits in the pair's fourth meeting.

"I knew she had a problem with her ankle yesterday. My coach told me I should forget about it, though, and just concentrate on myself," Zheng said. "I feel lucky to make the semifinals here, but I wish we could have finished our match today."

View Photos --> Gallery: Zheng's Best Moments

Nadal Achieves Historic Triumph With Victory Over Federer

At the age of 23 years and 11 months, Rafael Nadal won a record-breaking 18th ATP World Tour Masters 1000 title as he defeated rival Roger Federer 6-4, 7-6(5), in a No. 1 vs. No. 2 final Sunday at the Mutua Madrilena Madrid Open.

Watched by Queen Sofia of Spain, Nadal also became the first player to win all three ATP World Tour Masters 1000 clay court tournaments in the same year, having triumphed at the Monte-Carlo Rolex Masters (d. Verdasco) and the Internazionali BNL d’Italia (d. Ferrer) last month.

In their first clash for a year, Nadal and Federer, who had both come through three-set tussles in the semi-finals, struggled to find their form in the opening exchanges of their 21st meeting. Breaks were exchanged in the third and fourth games before Nadal broke decisively in the seventh game as Federer paid the price for a game littered with unforced errors. The second-seeded Nadal then saved four break points as he served out the set, finishing with a hooked forehand passing shot past the stranded Federer.

Federer Avenges Rome Defeat To Gulbis

World No. 1 Roger Federer, the 2006 and 2009 Mutua Madrilena Madrid Open champion, avenged his recent Rome defeat to fast-rising Ernests Gulbis on Friday, with a 3-6, 6-1, 6-4 victory for a place in the semi-finals at the Caja Magica, venue of the ATP World Tour Masters 1000 tournament.

The 28-year-old Swiss superstar, who will meet Spaniard David Ferrer Saturday, is attempting to clinch his 17th ATP World Tour Masters 1000 title, tying him with his rival Rafael Nadal and Andre Agassi.

Watch Video --> Federer's Friday Hot Shot

Federer On Course For Wawrinka Clash

After a surprise semi-final loss to Albert Montanes in Estoril last week, World No. 1 Roger Federer insisted he was not worried about his form going into Roland Garros and backed up his statement with a 6-2, 7-6(4) win over Benjamin Becker in his opening match at the Mutua Madrilena Madrid Open Tuesday.

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Federer, who is the defending champion at the ATP World Tour Masters 1000 clay-court tournament after defeating Rafael Nadal in the final last year, is this week looking to reach his first final since capturing his 16th Grand Slam title at the Australian Open (d. Murray).

The Swiss broke twice in the second and eighth games to seal a one-set lead, but could not find a way through Becker’s defences in the second set and was denied on a match point in the 12th game before the German forced a tie-break. Federer improved to a 7-4 record in tie-breaks this year, though, as he sealed victory in one hour and 21 minutes.

Watch Video --> Tuesday Day Highlights

Querrey Saves Match Point To Win All-American Final

Sam Querrey became the first American since 2003 to win a European clay-court title Sunday when he saved one match point to defeat countryman John Isner 3-6, 7-6(4), 6-4 in the final of the Serbia Open 2010, an ATP World Tour 250 tennis tournament in Belgrade.

Querrey’s triumph earned him 250 South African Airways 2010 ATP Ranking points and €67,430.

The 22-year-old Querrey has made great strides on clay in 2010. He reached his first ATP World Tour clay-court final last month in Houston (l. to Chela) and, together with Isner, advanced to the doubles final in Rome (l. to Bryan-Bryan).

“I hope I can continue to play well and my next step is to go deep in an [ATP World Tour] Masters 1000 event, hopefully try to win one of those,” said Querrey, who will play at the Mutua Madrilena Madrid Open next week.

Watch Video --> ATP World Tour Uncovered Sam Querrey