Here are the steps to take to edit your jersey size:
Login to the Club Website where you will be taken to your "Account Management" page.
Scroll down a little to find the “Player” area where you’ll see your daughter’s name.
Immediately below her name will be "Registered for" and a link that reads “XXU 2023 . . . ”. Click on that link and your daughter's information will be displayed.
Jersey sizes can be changed near the bottom of the page using the two dropdown lists.
Be sure to click "Save and Done" at the bottom of the page after you've made your changes!