• Rafael Nadal and Serena Williams both cruised in their opening matches, winning in straight sets without much pushback from their opponents. Nadal took down American Ryan Harrison 6-4, 6-2, 6-2 while Williams dropped just a single game in her two sets against Italian Francesca Schiavone.
• Venus Williams was also a big story on Day One, taking down No. 12 seed Kristen Flipkens 6-1, 6-2 to advance to the second round in a Grand Slam for the first time since the Australian Open this year. Williams was impressive with her first serve, winning 75 percent of her points when she got it in and looks like some of the nagging injuries that have sidelined her are gone for now.
• Weather was a problem all day at the U.S. Open, forcing some of the late matches, including Roger Federer, to Tuesday.
It looked like American Sloane Stephens might be out before the tournament really began, dropping her first set of this U.S. Open to Mandy Minella. A rain delay helped Stephens find her way, and after winning the second set faced another tough spot in the third after getting broken to fall down 4-2 to Minella in the final set.
That was where Stephens showed the fight that we've seen in previous Grand Slams, taking the third set to a tiebreaker and eventually winning that 7-5 to advance to the second round.
This return by Rafael Nadal in his opening match against Ryan Harrison was just downright ridiculous.
It was a tough match for Francesca Schiavone, who got smoked by Serena Williams, but this image of her hugging a ball boy is the best from the first day of the U.S. Open.
Bernard Tomic survived a gritty five-set win over Albert Ramos, and did it in style with his sleek Nike gear on.
It was an impressive win by Venus Williams on Monday at the U.S. Open, but her outfit left much to be desired. No, it wasn't just the dress and the hair, check out what she had on her left hand during her opening round win over Kristen Flipkens.
Day Two of the U.S. Open will open with matches being completed that got pushed because of weather in New York on Monday evening.
Roger Federer, Novak Djokovic, and Victoria Azarenka are all scheduled to play on Tuesday, and we will be following all the action so check back with us.