Victoria Mboko’s US Open debut ended early with a 6-3, 6-2 loss to Barbora Krejcikova of Czechia in women’s first-round singles Monday.

Mboko played her first match since claiming the National Bank Open title in Montreal earlier this month.

The rising star from Toronto, who turns 19 on Tuesday, arrived at Flushing Meadows as the women’s 22nd seed.

The Canadian drew a formidable first-round opponent as Krejcikova is a two-time Grand Slam champion and won the Wimbledon women’s title last year.

The Czech, a former world No. 2, opened with a break and cruised to victory in one hour and 23 minutes.

“Of course, I’m a little bit disappointed that I lost today, but reflecting back on it, Barbora, she’s a two-time Grand Slam champion and she has a great level,” Mboko said.

“Barbora, she has a

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