Sports Trauma Research Unit, FinnOrthopaedics, Joukahaisenkatu 6, 20520, Turku, Finland. lasse.lempainen@utu.fi.Department of Physical Activity and Health, Paavo Nurmi Centre, University of Turku, Turku, Finland. lasse.lempainen@utu.fi.Radiology Department, SCIAS-Hospital de Barcelona, Barcelona, Spain.FC Barcelona, Medical Services, FIFA Center of Excellence, Barcelona, Spain.Football Club AC Milan, Milan, Italy.Football Club Atlético Madrid, Madrid, Spain.Football Club FC Juventus, Turin, Italy.Football Club FC Juventus, Turin, Italy.Injury Prevention and Rehabilitation Department, Watford FC, Watford, England.Physiotherapy Department, Universidad Camilo José Cela, Madrid, Spain.Football Club FC Zenit, St. Petersburg, Russia.Football Club FC Zenit, St. Petersburg, Russia.FC Barcelona, Medical Services, FIFA Center of Excellence, Barcelona, Spain.Medical Department, Parma Calcio 1913, Parma, Italy.Department of Physical Activity and Health, Paavo Nurmi Centre, University of Turku, Turku, Finland.Department of Surgery, Kanta-Häme Central Hospital, Hämeenlinna, Finland.