While Andy Roddick and Rafael Nadal were preparing dinner at the W last night, Roger Federer was busy eating at the Gramercy Park Hotel, where Men's Vogue put on a dinner in his honor at Wakiya. Federer was there with his girlfriend, Mirka Vavrinec, but he was Anna Wintour's man for the night; she took him on her arm and flirtatiously accompanied him around the room, introducing him to friends like Diane Von Furstenberg, Vera Wang, and Oscar de la Renta. We asked Miss Anna about her favorite tennis couture this season. "Anything that Roger wears," she replied with a girlish giggle. If we were Shelby Bryan, we might be getting nervous. —Brett Amelkin

Earlier: Andy Roddick Cooks Dinner (With Help From Marcus Samuelsson)

Bonus Party Lines: Read more about Anna Wintour's tennis habits in our coverage of the Men's Vogue dinner.