 Did Françoise Dürr play tennis professionally before Marin Čilić started to play professionally?
Marin Čilić:  Čilić first came to international prominence by defeating then-World No. 2 Andy Murray in the fourth round of the 2009 US Open. Françoise Dürr: Françoise Dürr (born 25 December 1942; sometimes referred to by English writers as Frankie Durr) is a retired French professional tennis player.
i don't know