1. Sport and Exercise Medicine, Queen Mary University of London, Sport and Exercise Medicine, London, UK
2. Faculty of Life Sciences and Medicine, King's College London, London, UK
3. The Football Association, Burton-Upon-Trent, UK
4. Tottenham Hotspur Football Club, London, UK
5. West Ham United Football Club, London, UK
6. Department of Sports Science and Clinical Biomechanics, University of Southern Denmark, Odense, Denmark
7. Faculty of Sport, Health and Applied Science, St Mary’s University Twickenham, London, UK