La Jolla billionaire couple donate $220 million to study health lessons to be learned from elite athletes Jenna Mencarelli does track and field drills while performance coordinator Jon Gregory assesses her form at UC San Diego. (Brittany Cruz-Fejeran / The San Diego Union-Tribune) Among the beneficiaries of Joe and Clara Tsai’s gift are the La Jolla-based Salk Institute for Biological Studies and UC San Diego. Print On the eve of the Tokyo Olympics, a La Jolla billionaire couple pledged $220 million to scientists to study the biology of elite athletes in hopes of gaining insights that will broadly help people live longer, healthier lives.