Coach Talks: Sandra Zaniewska leads Petra Martić by example By James Henry (August 16, 2019) CINCINNATI — Sandra Zaniewska seems like any other female tennis player. And that’s the point. That is why she was asked two years ago by Petra Martić, who broke through with her first Grand Slam quarterfinal at the 2019 French Open, to be her coach. Zaniewska, actually a … [Read more...] about Coach Talks: Sandra Zaniewska leads Petra Martić by example