Re: ~Petra Martic~
Just checked h2h stats, Petra leads Safarova 1:0, they met in R1 of '09 Budapest (for which Petra qualified as the 3rd seed of qualies and WTA #135; later went on to reach the QF there), but that was clay and two years ago, when neither was where they are now. Safarova was already very good (8th seed, ranked #47 at the time), but Petra was still quite inexperienced. Still, she managed to win in straights.
Against S. Zhang she never played.