Tennis: Results from Day 1 of the US Open

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NEW YORK - Highlights of the first day at the U.S. Open at Flushing Meadows on Sunday (times GMT):

1822 SHELTON BEATS BUSE IN STRAIGHT SETS

Former semi-finalist and American sixth seed Ben Shelton beat Perus Ignacio Buse 6-3 6-2 6-4 to reach the second round.

1618 RADUCANU EASES PAST SHIBAHARA

Former U.S. Open champion Emma Raducanu brushed aside Ena Shibahara 6-1 6-2 to reach the second round.

1507 PLAY UNDER WAY

Play began under partly cloudy skies in New York, with the temperature around 25 degrees Celcius (77 degrees Fahrenheit).

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U.S. OPEN ORDER OF PLAY ON SUNDAY (prefix number denotes seeding)

ARTHUR ASHE STADIUM (1600 GMT/12 p.m. ET)

6-Ben Shelton (U.S.) v Ignacio Buse (Peru)

1-Aryna Sabalenka (Belarus) v Rebeka Masarova (Switzerland)

7-Novak Djokovic (Serbia) v Learner Tien