Exercise-based strategies to prevent muscle injury in male elite footballers: an expert-led delphi survey of 21 practitioners belonging to 18 teams from the Big-5 European Leagues - McCall, A.; Pruna, R.; Van der Horst, N.; Dupont, G.; Buchheit, M.; Coutts, A. J.; Impellizzeri, F. M.; Fanchini, M. (Sports Medicine, 2020)