Iga Swiatek enjoys impressive start to US Open title defence

World number one Iga Swiatek helped herself to a New York bagel to get her US Open title defence off to the perfect start.

The 22-year-old from Poland dropped just eight points as she took the first set to love against Rebecca Peterson.

Sweden's Peterson did get on the board early in the second but Swiatek, bidding for a fifth grand-slam title, completed a comprehensive 6-0 6-1 victory in just 58 minutes.

"I really wanted to play solid and start the tournament with everything I practised on," she said.

"I’m happy to play such a great game and despite all the pressure and expectation I can still have fun on the court."

There was an early upset on day one at Flushing Meadows with eighth seed Maria Sakkari from Greece bowing out 6-4 6-4 to Spanish world number 71 Rebeka Masarova.