Day 9 at the U.S. Open was marred by a whole lot of rain, but that just makes Day 10 that much better. 

Novak Djokovic, Andy Roddick and Maria Sharapova all failed to get through their first set and will finish their matches on Wednesday. Combine those with all of the the other top quarterfinal matches set to get underway, and I suggest taking a day off work.

Let's take a look at everything you need to know for Day 10 action. 

Wednesday's TV Schedule

For a complete look at the U.S. Open TV schedule, check out USOpen.org.

You can also watch live coverage online at WatchESPN.

Bracket Guide

You can find the complete draw for both the men and the women at USOpen.org. 

Complete Match Schedule

For a complete look at all the matches for Wednesday, check out USOpen.org. Here's a breakdown of the matches you can't miss on Day 10.

Matches to Watch

Andy Roddick vs. Juan Martin del Potro

The rain allowed Roddick, who currently sits in a first-set tiebreak with del Potro, to live another day.

Roddick's next loss, as everyone knows by now, will be the last match of his Hall of Fame career, which makes it a must-see event every time he takes the court. 

The former world No. 1 came out strong against the seventh-seeded del Potro, but with a chance to take the first set, his big serve was unexpectedly broken. Opportunity missed. 

If this one continues down the same path as the first nail-biting set, you aren't going to want to miss the action. 

Sara Errani vs. Roberta Vinci

The 10th-ranked Errani against the 20th-ranked Vinci for a spot in the semis normally wouldn't be a must-see match.

But the intrigue in this one is a little different.

Alex Trautwig/Getty Images

Errani and Vinci are the second-ranked women's doubles team in the world, and they just clinched a spot in the doubles semifinals. Now the Italian friends have to face each other for yet another semifinal spot. 

Errani has had the advantage over Vinci over the past two years, but it's still worth watching to see if each woman brings it 100 percent. 

Roger Federer vs. Tomas Berdych

Most people are looking forward to Fed-Ex facing Andy Murray in the semis and then Novak Djokovic in the final, but the sixth-seed Berdych is far from a gimme. 

The Czech has held up very well against Federer over the past couple of years, winning three of their six matches and two of three on hard courts.

Nonetheless, Federer is playing like the mid-2000s Federer and should be able to roll to the semifinals. Just know that this will be closer than most think and arguably the best quarterfinal matchup of the day. 

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