As part of a loan from the National Women's Soccer League's Sky Blue FC, she'll remain in Paris until February 2021.
Ross is now the second prospect to join Penn State lacrosse's class of 2022.
Mac O'Keefe, Dylan Foulds, and Grant Ament heard their names called Thursday night.
The current recruiting dead period was originally set to run through September 30.
The NCAA recommended teams give student-athletes the first Tuesday of each November off so they can vote in local, state, and federal elections.
The NCAA has reportedly approved November 25 as a start date for its men's and women's basketball seasons.