Tomas Berdych defeated Roger Federer in the most stunning upset at this year’s U.S. Open. Also stunning? His girlfriend, Czech model Ester Satorova who we labeled as one of the hottest tennis WAGs of all-time earlier this year.

Berdych will be action in tomorrow’s semifinal against Andy Murray. Expect multiple cutaways to a nervous Satorova in the stands. Take a look at some screencaps we took from the Federer match.

(ESPN screenshots) -A. Isaac