1 Department of Physical Education and Sports, Faculty of Education and Sport, University of the Basque Country, UPV/EHU, Vitoria, Spain.
2 Tottenham Football Club, London, United Kingdom.
3 National Institute of Physical Education of Catalonia, University of Barcelona, Barcelona, Spain.
4 Manchester City Football Club, 1st Team, Manchester, United Kingdom.
5 Academy Department, Deportivo Alavés, Vitoria-Gasteiz, Spain.
6 Department of Health Sciences, Faculty of Health Sciences, Universitat Oberta de Catalonia, Barcelona, Spain.
7 UCAM Research Center for High Performance Sport, Catholic University of Murcia (UCAM), Murcia, Spain.
8 Faculty of Sport Sciences, Catholic University of Murcia (UCAM), Murcia, Spain.
9 FC Barcelona Sports Performance Department, Barcelona, Spain.
10 Núcleo de Alto Rendimento Esportivo de São Paulo (NAR), São Paulo, Brazil.
11 Department of Biochemistry Molecular Biology and Physiology, Faculty of Health Sciences, Campus de Soria, University of Valladolid, Soria, Spain.
12 National Institute of Physical Education of Catalonia, University of Lleida, Lleida, Spain.
13 Department of Sports, Faculty of Physical Activity and Sports Sciences (INEF), Universidad Politécnica de Madrid, Madrid, Spain.
14 Departamento de Medicina Deportiva, Fundación Deportiva Municipal de Avilés (FDM), Aviles, Spain.
15 Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University of Trás-os-Montes and Alto Douro, UTAD, Vila Real, Portugal.