Tuesday's Cincinnati round of 32 pits Katerina Siniakova against Madison Keys on hard. Madison Keys is 7-3 across recent matches. Katerina Siniakova comes in at 5 wins from the last ten.
Hold strength tells the story — 65.5% versus 61.1% on first-serve points in Keys's favor. Keys should have enough here, though Siniakova has the tools to make the scoreboard uncomfortable.