1. World Players’ Union (FIFPro), Hoofddorp, The Netherlands
2. Department of Orthopaedic Surgery, Amsterdam Movement Sciences, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
3. Amsterdam Collaboration on Health & Safety in Sports (ACHSS), AMC/VUmc IOC Research Center, Amsterdam, The Netherlands
4. Division of Exercise Science and Sports Medicine, University of Cape Town, Cape Town, South Africa
5. Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands