• performance and match analysis; • training and testing; • physiotherapy and injury prevention; • biomechanics; • youth development; • women’s soccer; • sport science and coaching; • sport psychology. Sports scientists, trainers, coaches, physiotherapists, medical doctors, psychologists, educational officers and professionals working in soccer will find this in-depth, comprehensive volume an essential and up-to-date resource. The chapters contained within this volume were first presented at The Fourth World Conference on Science and Soccer, held in Portland, Oregon, in June 2014 under the auspices of the World Commission of Science and Sports.