Tiafoe knocks out Auger-Aliassime as Cincinnati loses its top two seeds on the same day

American Frances Tiafoe eliminated Canadian Felix Auger-Aliassime, the second seed, 6-3, 6-4, to reach the Cincinnati Open quarterfinals on Thursday night, a result that saw the tournament’s top two seeds fall on the same day after Alexander Zverev’s loss against Tommy Paul. Tiafoe, the No 17 seed and ranked No 23, has now won his last four meetings against top-10 opponents…

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