The present study examined the effects of progressive muscular relaxation techniques on young adult football players collecting both quantitative and qualitative data. The study also aimed to investigate participant's experiences of using PMR in a competitive environment. 3 young adult footballers had 6 performance sub-components assessed across 4 competitive local league matches. According to the Federation of the International Football Associations (FIFA) 250 million people play football around the world. This shows that football is of huge international interest. For football to continue to develop, a deeper understanding of how to improve performance is needed.