Messina, G., Francavilla, V.C., Giustino, V., Mingrino, O., Genovesi, F., Amato, A. and Proia, P. 2020. Use of nutritional supplement to improve performance in professional soccer players: A case report. Journal of Human Sport and Exercise. 15, 2proc (May 2020), S289-S298. DOI:https://doi.org/10.14198/jhse.2020.15.Proc2.20.