Photos from Flushing Meadows: Day 1

A busy day turned into a busy evening under the Unisphere.

​Each day during the U.S. Open, we'll feature Anita Aguilar's photography, captioned by Steve Tignor. For more photo galleries, click here.

No ranking? No problem: Danielle Rose Collins of the U.S. took a set from the world No. 2, Simona Halep.

But Halep never lost her pristine form on her serve, and righted the ship quickly.

Andy Murray was moving OK here, but cramps made his day a miserable one.

In the fourth set, it was Murray's body v. Robin Haase's brain. The more one struggled, the more the other followed suit.

Taro Daniel lost in straight sets to Milos Raonic, but worked up a good sweat along the way.

Nick Kyrgios had a few things to say during his four-set win over Mikhail Youzhny; he was handed three code violations, including a loss of game.

Youzhny, 13 years Kyrgios's senior, stretched the kid as far as he could.

Benoit Paire took his racquet to the woodshed in his match against fellow Frenchman Julien Benneteau. Imagine what he would have done if he had lost.

Benneteau also needed to cool off. He got some sympathy—or is that mockery?—from a woman in the crowd.

Whether is was with her opponent or with a very determined bee, Venus Williams was concerned during her first set against Kimiko Date-Krumm.

In the end, though, the long and the short of it was that Venus advanced.

Anastasia Rodionova obviously didn't mind the heat. She, and her socks, upset Camila Giorgi on the Open's new side court 4.

Milos Raonic wowed the crowd with his shirt and his game.

Caroline Wozniacki recognized a friend among the fans after her win in the Grandstand.

A busy day turned into a busy evening under the Unisphere.

Maria Sharapova, looking sharper than she has since Paris, won 10 straight games and kissed old friend Maria Kirilenko good-bye.

It was all good for Novak Djokovic, who had as much trouble with a few hecklers as he did his opponent, Diego Schwartzman.

The stars always do come out at night in New York.