Courtside Debutantes: Emma Roberts, Lindsey Vonn and Tate McRae Open the U.S. Open in Full Color

Sunday's first matches at Flushing Meadows doubled as a runway moment, with the trio arriving in Ferragamo, Versace and Ulla Johnson for the tournament's opening rounds and the USTA Foundation Gala. New York claimed its usual late-summer crossover of sport and society, proving a courtside seat still calls for full dress rehearsal.

With reporting from WWD.