Aug 28, 2023; Flushing, NY, USA; Rebeka Masarova of Spain hits a shot against Maria Sakkari of Greece on day one of the 2023 U.S. Open tennis tournament at the USTA Billie Jean King National Tennis Center.

Source: https://www.channelnewsasia.com/sport/sakkari-stunned-masarova-us-open-first-round-3730516?cid=cna_flip_070214

Gauff will begin her tournament on Monday or Tuesday against Spain’s Rebeka Masarova.

Source: https://www.expressandstar.com/sport/uk-sports/2023/05/27/coco-gauff-hoping-a-return-to-paris-brings-out-her-best-tennis/

Masarova dominated in that regard, with a 92 per cent winning percentage.

Source: https://www.baytoday.ca/national-sports/andreescu-marino-knocked-out-of-bad-homburg-eastbourne-international-7203050

She will take on Italian Lucia Bronzetti on Tuesday, while last year's finalist Coco Gauff faces Spain's Rebeka Masarova, with former Grand Slam champions Victoria Azarenka and Bianca Andreescu clashing in the last match on Court Simonne-Mathieu.

Source: https://www.channelnewsasia.com/sport/swiatek-begins-french-open-defence-sights-successive-titles-3524071?cid=cna_flip_070214