Sabalenka and Pegula, two of Toronto’s biggest favourites, both fall in the round of 16

Russian Ekaterina Alexandrova, the No. 16 seed, beat top seed Aryna Sabalenka of Belarus 7-6 (3), 4-6, 6-4 in the round of 16 of the National Bank Open on Saturday night, leveling their head-to-head series at 5-5 and denying the world No. 1 a quarter-final berth in Toronto. Hours earlier, Russian Diana Shnaider, seeded No. 15, had already beaten No. 3 seed Jessica Pegula of the United States 6-3…

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