1. FIFA Medical Centre of Excellence, Institute of Orthopedics and Traumatology, Medical School, University of São Paulo, 05403-010 São Paulo, SP, Brazil
2. Fédération Internationale de Football Association, 8044 Zürich, Switzerland
3. FIFA Medical Assessment and Research Center (F-MARC), Schulthess Clinic, Fédération Internationale de Football Association, 8008 Zürich, Switzerland
4. Division of Orthopedics and Trauma Surgery, Geneva University Hospital, 1205 Geneva, Switzerland