Penn officials did not respond to a request for comment on either the claims raised in the letter or whether the school planned to mount a legal challenge should Thomas be ruled ineligible for the NCAA championships.
On Tuesday, another group of Penn swimmers released a statement supporting Thomas after an unidentified Quakers swimmer spoke to Fox News about her, claiming she had a “monumental” advantage over her teammates after going through male puberty.
“We want to express our full support for Lia in her transition,” the athletes said in Tuesday’s statement, per ESPN. “We value her as a person, teammate, and friend. The sentiments put forward by an anonymous member of our team are not representative of the feelings, values, and opinions of the entire Penn team, composed of 39 women with diverse backgrounds.”