Glenn Gilliam, executive director of strategic partnerships for the documentary film "Althea," joins Thirty Love host Carl Bialik at the US Open to talk about the new Althea Gibson sculpture on the grounds, how Gibson compares to Serena Williams, and what's holding tennis back from being more representative of the world around it today. Have a suggestion for a Thirty Love guest, during the US Open or beyond? Email Carl at bialik@pm.me Music by Lee Rosevere: "Credit Roll" and "Glass Android."