By Julie Kliegman The letter calls on the NCAA to not adopt USA Swimming’s policy midseason. View the original article to see embedded media. More than 300 current and former NCAA, Team USA and international swimmers and divers signed on to an open letter sent to the NCAA on Thursday in support of Lia Thomas, an openly transgender swimmer competing on Penn’s women’s team. Athlete Ally, an LGBTQ+ advocacy group, and Schuyler Bailar, who swam for Harvard as the first openly transgender person to compete in the men’s category in Division I across all sports, organized the effort and sent the lett…