The present case study aimed to modify, implement, and evaluate a sport-specific dissonance-based body image promotion intervention for female adolescent athletes. The case included 33 female adolescent soccer players (11–14 years old) who completed the Youth-Female Athlete Body Project, a 4-week team-based intervention. The intervention was evaluated using quantitative measures gathered pre- and postintervention and qualitative responses from focus groups that were administered 1-week postintervention. The quantitative assessments examined body-ideal internalization, aesthetic and functional body image, perceived body shape, and fat talk. Significant decreases in participants’ thin-ideal and muscular-ideal internalization as well as fat talk were found postintervention. Focus groups were conducted with a subset of participants (n = 24) to gather insight into the positives and negatives of the intervention, intervention outcomes, and recommendations for future intervention delivery. Reflections from the practitioners are provided and recommendations for effective intervention implementation from practitioners’ and participants’ perspectives are discussed.