The Japanese star says she should have been used to the pressure that she faced in Tokyo.
Women's Round of 16 and Men's third-round action will take place on Tuesday at the Olympics Games.
The No.8-seeded pairing is out of the Olympics due to a positive Covid-19 test.
The 34-year-old Scot will remain in the doubles draw.
Naomi Osaka and Ash Barty are first up on Centre Court as Day 2 of Olympic action begins.
Iga Swiatek kicks things off on Centre Court, with Novak Djokovic up fourth.
The World No.1 might want to try the floor exercise in Tokyo...
