Javier Mallo (PhD in Sports and Physical Activity Sciences & BSc in Physiotherapy) works since 2013 as a fitness coach for Real Madrid CF, with previous experiences at Manchester City FC and Atletico de Madrid, among other football teams. He has complemented his practical experience in professional football with the publication of books, presentations in international congresses and lecturing in the Technical University of Madrid (Spain), providing theoretical tools to develop an alternative approach to the training of football.