Alexandrova Topples Sabalenka, Shnaider Stuns Pegula in Toronto

Alexandrova ends Sabalenka's title bid in a three-set thriller

The most consequential result of the 2026 WTA Canadian Open arrived on Saturday afternoon when 16th seed Ekaterina Alexandrova eliminated world number one Aryna Sabalenka 7-6(3), 4-6, 6-4 in two hours and 29 minutes. Alexandrova edged the opening tiebreak 7-3 by keeping the ball flat and early, denying Sabalenka the time to load up her groundstrokes. The Belarusian reasserted herself in the second set, winning it convincingly to level the match, but the Russian held her nerve in the decider and broke at the crucial moment to book her place in the last eight. The result levels their career head-to-head at 5-5 and is Alexandrova's third win over a reigning world number one — after victories over Sabalenka herself in Doha in 2025 and over Swiatek in Miami in 2024.

For Sabalenka, the exit is a second consecutive Round of 16 elimination in Toronto. The Belarusian had been one of the tournament's clear favourites and had conceded not a single set before Saturday's match. Alexandrova, by contrast, now advances to her first Masters 1000 quarterfinal in Toronto and enters it as arguably the in-form player on that side of the draw.

Shnaider completes a remarkable double blow

The first shock had barely settled when 15th seed Diana Shnaider added a second: a clinical 6-3, 6-3 defeat of third seed Jessica Pegula completed in just 73 minutes. Shnaider imposed herself from the first game, driving heavy, flat groundstrokes deep into Pegula's court and converting three of her five break-point opportunities across both sets. Pegula, who had also come through the week without dropping a set, never found her footing on the Toronto hardcourt and was broken three times in total.

The simultaneous elimination of the No. 1 and No. 3 seeds in a single afternoon session is the most striking collective shock any WTA Masters 1000 draw has produced in 2026. Both players had been in the reckoning for the title as recently as Friday.

Swiatek recovers, Svitolina advances

Seventh seed Iga Swiatek needed a first-set recovery against Marta Kostyuk, who had beaten the Pole at Roland Garros 2026 and repeated that fast, aggressive pattern to take the opener 6-3. But from the second set onwards, Swiatek's level shifted sharply upwards: she won 3-6, 6-1, 6-2 overall, conceding only three more games after the opening set. The turnaround, sharp and relentless once it began, doubles as a direct statement of intent heading into the last eight.

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Ninth seed Elina Svitolina closed Saturday's programme with a 6-2, 6-4 victory over Amanda Anisimova. Svitolina controlled the first set throughout and repelled Anisimova's improved second-set effort to advance in straight sets and set up a quarterfinal against Alexandrova.

Quarterfinals: Shnaider–Swiatek headlines, Alexandrova meets Svitolina

Saturday's results shaped two headline quarterfinal matchups: Shnaider against Swiatek — the tournament's most dangerous upset-maker against its most decorated active hard-court performer — and Alexandrova against Svitolina. On the opposite side of the draw, Elena Rybakina, Coco Gauff and Leylah Fernandez, who knocked out fifth seed Andreeva earlier in the week, will contest the remaining final berths. With Sabalenka and Pegula out of contention, the Toronto title is genuinely open from multiple directions heading into a quarterfinal slate that begins Monday.