U.S. Open Day 10 matches to watch

Roger Federer goes into his matchup with No. 6 seed Tomas Berdych on three days' rest (Elsa/Getty Images)

As expected, rain wreaked havoc on Tuesday's order of play, with only two of the six scheduled singles matches in the books. The second women's quarterfinal between Maria Sharapova and Marion Bartoli was suspended and postponed with Bartoli having raced out to a 4-0 lead on the No. 3 seed, who looked overwhelmed by Bartoli's power and precision. The match was suspended and then postponed to Wednesday in order to allow the night session, which featured what could be Andy Roddick's final match against Juan Martin del Potro to get on court. As it turned out, Roddick and Del Potro played less than an hour, and that match was suspended as the first set tiebreak began with Roddick leading 1-0.

In other matches that will resume on Wednesday, Janko Tipsarevic leads a tired Philipp Kohlschreiber 5-2 and Novak Djokovic has already secured an early break, leading Stanislas Wawrinka 2-0.

The postponements mean a packed day of play for Wednesday, where once again rain is expected throughout. Who knows how many matches they'll actually be able to finish, but if I'm Roger Federer, I'd be ready to play on Thursday.

Here's are the matches we'll be watching tomorrow. To see previews for the matches that have been suspended you can read yesterday's preview here.

Roger Federer (SUI)[1] vs. Tomas Berdych (CZE)[6] (second night match, Arthur Ashe Stadium): Due to Mardy Fish's withdrawal, Federer hasn't played a match since Saturday, giving him over three days' rest since his third-round win over Fernando Verdasco. Given his experience it shouldn't slow him down or disrupt his rhythm, though he'll be coming up against a man who has beaten him in a Slam. Berdych has turned his summer around quickly after making the final of Winston-Salem and he's gone through some quality opposition to make the quarters, beating David Goffin, Sam Querrey, and Nicolas Almagro, dropping only one set for the tournament. Watching him play Almagro I was impressed by how clean he's hitting his forehand, a weapon he'll need if he plans on disrupting Federer in any way.

When Berdych beat Federer at Wimbledon in 2010 he did so with relentless aggression. He served big, he hit bigger, and he didn't blink when Federer created opportunities to break. Berdych has the ability to replicate that performance but the problem is this is a different Federer. The Wimbledon champ is effortlessly surfing a wave of confidence right now and he has cruised through the early rounds, breaking a sweat only in response to the humidity, not his opposition. Berdych has the game to beat the best. He's proven that before. Whether he can bring that game in light of Federer's relentless offense we'll have to wait and see.

Serena Williams (USA)[4] vs. Ana Ivanovic (SRB)[12] (first night match, Ashe Stadium): Ivanovic has had somewhat of a deja vu tournament. First a 2011 rematch against Sloane Stephens in the third round, which she won, and now she plays the woman who bounced her from the tournament last year in Serena. To Ivanovic's credit, she played Serena well last year, losing 6-3, 6-4 in match in which she was simply overpowered. All signs point to the same result this year. Though Ivanovic has surged to make her first Slam quarterfinal in four years she has done so over relatively easy competition, the result of her draw opening up after Caroline Wozniacki's early loss. She is striking the ball remarkably well, especially on her forehand, but Serena's speed and power will rock her on her heels, taking away time on her windup. Serena comes into this match having laid down three straight 6-0 sets on her opposition, saving her best for her last round against Andrea Hlavackova, where she dropped a brutal 6-0, 6-0 loss on the Czech.

Andy Murray (GBR)[3] vs. Marin Cilic (CRO)[12] (third match, Ashe Stadium)