Student Life
Athletics
Sports Medicine
Why Sports Medicine?
The athletic program at Justin-Siena offers students the opportunity to compete in a wide variety of competitive interscholastic sports. Each team is coached by qualified and knowledgeable coaches committed to providing outstanding programs and opportunities for the Justin-Siena student athletes.
Student-Athlete Safety Policies
Willem Winkelman has been the Athletic Trainer at Justin-Siena since 2023. Prior to joining Justin-Siena, Willem was an Assistant Athletic Trainer at Sacramento State University, working primarily with the women’s gymnastics team. He has also had stops at UC Berkeley, Maria Carrillo High School, and Petaluma High School.
Willem holds a degree in Athletic Training from California State University, Fresno and a Masters in Kinesiology from California State University, Fullerton. In addition to being a Certified Athletic Trainer, Willem maintains an Emergency Medical Technicians license and volunteers his time outside of Justin-Siena with the Gold Ridge Fire Protection District.
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SportsWare
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Concussion
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Athlete Need-to-Know Information
Justin-Siena High School
Justin-Siena is a Lasallian Catholic college preparatory community that serves young people in grades 9–12.