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World No 1 takes just 81 minutes to complete win
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Italian has 25 straight wins at hard-court grand slams
Jannik Sinner claimed his quickest grand slam victory with a brutal destruction of Alexander Bublik in the fourth round of the US Open.
The world No 1 had looked a little vulnerable in the previous round, when he dropped his first set of the tournament to Denis Shapovalov, but he needed just an hour and 21 minutes to race to a 6-1, 6-1, 6-1 win against Bublik.
