Naomi Osaka was due to play in the first match of the day session at the 2021 US Open but will move through to the third round after a walkover before the match began.
Osaka who saw off Marie Bouzkova in her opener 6-4, 6-1 was due to face Olga Danilovic who saw off American wildcard, Alycia Parks but due to a medical reason, the World No.2 will now move into the third round.
The winner of Leylah Fernandez and Kaia Kanepi will now await in the third round instead.