Madison Keys shocked Iga Swiatek 6–3, 6–4 on Aug. 18 to move into the Cincinnati Open quarter-finals, further disrupting the world number one’s preparations for the U.S. Open.
Swiatek, who won her 50th match of the year in the previous round, saved four match points but was far from her best as she again exited a second tournament in the U.S. swing at the last-16 stage after last week’s Canadian Open.
Keys, Cincinnati champion in 2019, had never taken a set off Poland’s Swiatek in two previous meetings but the American was far more clinical with her powerful returns and groundstrokes, breaking the world number one five times….