Fourth seed Naomi Osaka made short work of Dayana Yastremska at the Western & Southern Open on Tuesday, coming through 6-3, 6-1 in just over an hour against the 16th seed. Osaka blasted eight aces and saved all five break points she faced on her way to the victory. Up next for Osaka in New York will be Anett Kontaveit, seeded 12, in the quarter-finals.