Naomi Osaka vs Elena Rybakina — QF — Canadian Open

The decider turned on Rybakina's first serve, and the third-set split is stark: she won 95% of her first-serve points with five aces and no double faults, while Osaka went 0-for-4 on break points across the same stretch. The break landed in game 7, for 4-3. The 11th seed had taken the opener on her only break chance of that set and won more games than Rybakina on the day, 16 to 15, and still lost: 65% of her first-serve points to the No. 2 seed's 78%. The two arrived with no prior meetings on record. Rybakina needed a second match point, 2 hours and 33 minutes in, and reaches the Canadian Open semifinals having been taken to three sets in three of her four matches this week.