The Quantification of Physical Performance and Internal Training Load in Youth Male Soccer Players During Preseason. - Martinho, Diogo V.; Rebelo, André; Field, Adam; Ribeiro, Alex S.; Pereira, Filipa; Bizarro, Bruno; Ribeiro, João; Len, Silvano M.; Gouveia, Élvio R.; Sarmento, Hugo (International Journal of Sports Physiology & Performance, 2024)