Kathrin Steffen, PhD, is a senior researcher at the Oslo Sports Trauma Research Center (OSTRC) at the Norwegian School of Sport Sciences. Besides her studies in Norway, she has a Master degree from The German Sports University in Cologne (Diplom Sportwissenschaft). Her primary research field is sports injury prevention, with focus on young athletes and ACL research. Presently, she leads the outreach activities of the OSTRC. Kathrin also works as a research assistant at the Department of Medical & Scientific Activities in the International Olympic Committee (IOC), where she is enrolled in the injury & illness surveillance programs during Olympic Games. Together with Professor Lars Engebretsen, she serves as an editor for the four annual IOC-supported issues of the British Journal of Sports Medicine – Injury Prevention and Health Protection. Kathrin is a former tennis player and enjoys much her “comeback”.