U.S. Open 2013 (96 images)

Lenny Kravitz performs during the opening ceremony at the U.S. Open Championship held at the USTA Billie Jean King National Tennis Center on August 26, 2013 in New York City. UPI Photo/Monika Graff

Monica Puig of Puerto Rico serves to Alisa Kleybanova of Russia in the first set of their first round match in day one at the U.S. Open Tennis Championships at the USTA Billie Jean King National Tennis Center in New York City on August 26, 2013. UPI/John Angelillo

Sloane Stephens hits a forehand in the first set of her first round match against Mandy Minella of Luxembourg in day one at the U.S. Open Tennis Championships at the USTA Billie Jean King National Tennis Center in New York City on August 26, 2013. UPI/John Angelillo

Stefanie Voegele of Switzerland hits a forehand to Anna Schmiedlova of Slovakia in their first round match at the U.S. Open Tennis Championships at the USTA Billie Jean King National Tennis Center in New York City on August 26, 2013. UPI/John Angelillo