Following a dazzling win at the National Bank Open, Canadian phenom Victoria Mboko fell short of expectations in her US Open debut.

The 22nd-seeded Mboko lost 6-3, 6-2 in the first round of the US Open to two-time Grand Slam champion Barbora Krejikova on Monday.

It was the first time in her young career that the 18-year-old Mboko was given a seeded spot at a Grand Slam after earning a meteoric rise up the ranks with the WTA 1000 win in Montreal in July.

It was short-lived, however, as Mboko was quickly put on her heels against the experienced Krejcikova, losing serve in the opening game.

She was unable to snag one back against the 29-year-old, as Krejcikova dominated her service games, winning 66 per cent of service points and 80 per cent of first-serve points in the opening set.

It d

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