Patty Schnyder (born 14 December 1978 in Basel) is a Swiss professional tennis player. She has been playing on the WTA tour since 1993 and is a former World No. 7. She has defeated several World No. 1 players, including Martina Hingis, Lindsay Davenport, Serena Williams, Arantxa Sánchez Vicario, Steffi Graf, Jennifer Capriati, Kim Clijsters, Justine Henin, Amélie Mauresmo, Jelena Janković, Ana Ivanović and Caroline Wozniacki..