Because In The World Of Tennis.

https://bleacherreport.com/articles/10006724-serena-williams-withdraws-from-1st-round-match-at-2021-wimbledon-due-to-injury

"Retiring Nazi" clearly isn't considered an exception.

https://edition.cnn.com/2020/09/11/tennis/naomi-osaka-us-open-face-mask-spt-intl/index.html