A Monday men's final is becoming a U.S. Open tradition.

Rafael Nadal (1), Spain, vs. Mikhail Youzhny (12), Russia

So much for Rafa vs. Roger in the U.S. Open final. Novak Djokovic prevented what would have been the eighth Grand Slam championship match between tennis' top two men - and first such showdown at Flushing Meadows - by saving two match points and coming back to stun Roger Federer 5-7, 6-1, 5-7, 6-2, 7-5 in Saturday's semifinals.

Dealing well with the whipping wind and a familiar foe, 16-time Grand Slam champion Roger Federer served his way to a 6-4, 6-4, 7-5 victory over fifth-seeded Robin Soderling on Wednesday night to reach the U.S. Open semifinals.

Top-seeded Caroline Wozniacki stretched her winning streak to 13 matches by beating 45th-ranked Dominika Cibulkova 6-2, 7-5 in the U.S. Open quarterfinals Wednesday night.

Sam Querrey was ousted from the U.S. Open on Tuesday, meaning no American man will make the quarterfinals at Flushing Meadows for the second straight year.

When No. 3 seed Venus Williams and No. 6 seed Francesca Schiavone meet up in the U.S. Open quarterfinals, someone will be losing their first set of the tournament.

Venus Williams struggled with her serve. She kept tugging at her dress. Every bit as big a nuisance was her opponent, Shahar Peer.

Petra Kvitova knocked the No. 1 seed out in the third round at last year's U.S. Open, but upsetting No. 2 seed Kim Clijsters in 2010 will be more of a challenge.

Maria Sharapova, Jelena Jankovic and Svetlana Kuznetsova all needed comebacks to advance out of the first round of the U.S. Open on Tuesday.

Just a few months ago very few people would have brought up Mardy Fish, David Nalbandian or Marcos Baghdatis as being any real threat to surprise the field with deep U.S. Open runs. But their summer performances have made them U.S. Open sleepers to watch.

Tennis returns to New York with a number of interesting Day 1 storylines: America's sweetheart Melanie Oudin is back in action, Kim Clijsters is starting her title defense, Roger Federer is looking to make a run to reclaim his title and more. Take a look at five matches to watch.