Anna Wintour LURVES tennis!
Yesterday, she attended day 2 of the US Open to watch Federer play against Marinko Matosevic, and she looked preppy as can be in a green and black striped A-line Prada dress belted at the waist.
Though her favorite Manolos weren't traded in for sneakers or tennis shoes, of course. That would be preposterous!
We're almost certain the bag was a gift from Posh, so La Wintour doesn't have to worry about the $1,500 price tag cutting into her style allowance.
[Image via Joel Ginsburg/WENN.]