Barraclough, James, Grecic, David ORCID: 0000-0003-1487-8327 and Harper, Damian ORCID: 0000-0002-5430-1541 (2022) Examining the psychological characteristics of developing excellence profiles of male English youth soccer players: differences across ages and performance levels. International Journal of Sport and Exercise Psychology . pp. 1-23. ISSN 1612-197X