Friday's Toronto round of 32 pits Elise Mertens against Naomi Osaka on hard. Naomi Osaka has won 8 of the last 10. Elise Mertens comes in at 7 wins from the last ten.

Hold strength tells the story — 71.1% versus 63.4% on first-serve points in Osaka's favor. Little separates them; Osaka gets the nod on the finest of margins.