Josephine, originally from Pezenas, France, was a two-time regional champion in Normandy, France, in the 17/18 age category as a junior. She subsequently, attended Drury University, earning a BS in Psychology and an MBA. While at Drury, she played on two NCAA Division II National Championship tennis teams, in 2017 and 2018,  and served as the graduate assistant tennis coach from 2019 through 2021, while earning her MBA. She comes from SPORTIME/JMTA in New York.