Mark Russell is a Professor at Leeds Trinity University and focuses his research on topics allied to performance nutrition and applied exercise physiology for team sport athletes. As a result of this research, Mark has published over 75 peer-reviewed articles, presented at international conferences and led multiple industry-funded contract research projects from inception to completion. Professor Russell presently supervises a number of Doctoral candidates at Leeds Trinity University which includes leading projects related to profiling the performance and physiological responses of soccer goalkeepers and team sport substitutes, optimizing half-time strategies, and facilitating recovery in Rugby League players. Professor Russell also works with a range of professional rugby and football teams and has consulted to a number of English Premier League football clubs and National and International Rugby squads.