(Reuters) -Highlights of the ninth day at the U.S. Open at Flushing Meadows on Monday (times GMT):
1643 DE MINAUR EASES PAST RIEDI
Australian eighth seed Alex de Minaur cruised past Switzerland's Leandro Riedi 6-3 6-2 6-1 to reach the quarter-finals of the U.S. Open for the third time.
1509 PLAY UNDER WAY
Play began under clear skies in New York, with the temperature around 23 degrees Celsius (73 degrees Fahrenheit).
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U.S. OPEN ORDER OF PLAY ON MONDAY (prefix number denotes seeding)
ARTHUR ASHE STADIUM (1530 GMT/1130 AM ET)
25-Felix Auger-Aliassime (Canada) v 15-Andrey Rublev (Russia)
23-Naomi Osaka (Japan) v 3-Coco Gauff (U.S.)
1-Jannik Sinner (Italy) v 23-Alexander Bublik (Kazakhstan)
8-Amanda Anisimova (U.S.) v 18-Beatriz Haddad-Maia (Brazil)
LOUIS ARMSTRONG STADIUM (1500 GMT/11 AM ET)
Leandro Riedi (Switzerland) 8-Alex de Minaur (Australia)
13-Ekaterina Alexandrova (Russia) v 2-Iga Swiatek (Poland)
10-Lorenzo Musetti (Italy) v Jaume Munar (Spain)
(Reporting by Chiranjit Ojha in BengaluruEditing by Christian Radnedge)