[Q] Lulu Sun (NZL) v [15] Marta Kostyuk (UKR)

Marta Kostyuk had an up and down game when she served first in her second round match against Lulu Sun in Cincinnati, being taken to deuce when she was forced to hit a backhand over the baseline to end a good short rally. The rally which came after the deuce was way better, Kostyuk winning…