U.S. Open Singles Semifinals Breakdown

This year's U.S. Open has already yielded many spectacular matches, and there's still three days left of play. After 25 years of coverage on the USA Network (ESPN and the Tennis Channel will pick up the rights next year), the athletes are providing a worthy sendoff. We've already seen an epic showdown between the Williams sisters and a grueling five-setter from Novak Djokovic and Tommy Robredo. However, unranked or low-seeded players have given the likes of Rafael Nadal and Dinara Safina a run for their money. Below I've previewed both the men's and women's semifinal matches, which will begin tomorrow.

Women

Dinara Safina RUS (6) vs. Serena Williams USA (4)

The spotlight has always just missed Dinara Safina. Though the 22-year-old has won a Grand Slam doubles title, a singles championship has always eluded her. Also, it doesn't help that she's the little sister of 2000 U.S. Open men's champion, Marat Safin. Safina lost to Ana Ivanovic in this year's French Open final and earned the silver medal in Beijing. Unfortunately, two-time U.S. Open women's champion Serena Williams now stands in her way. After losing to Venus at Wimbledon, the sisters put on a phenomenal show last night at Flushing Meadows, with Serena emerging the victor. Given Safina's emotionality on the court and her focused desire to win the same championship as her brother, tomorrow's match is a must-see.