title: Comment on 'Performance analysis in football: a critical review and implications for future research'.
abstract: MacKenzie and Cushion (2013) recently reviewed performance analysis research in association football (soccer). Their critical review focused on several themes related to methodological approaches such as sample size, match context and operational definitions and the implications of research findings to professional practice. In this response letter, we comment on additional pragmatic concerns regarding these key themes as well as some of the difficulties commonly faced when conducting performance analysis research.
authors.affiliation: a Institute of Coaching and Performance, University of Central Lancashire , Preston , UK.
authors.forename: Christopher
authors.initials: C
authors.lastname: Carling
authors.forename: Craig
authors.initials: C
authors.lastname: Wright
authors.forename: Lee John
authors.initials: LJ
authors.lastname: Nelson
authors.forename: Paul S
authors.initials: PS
authors.lastname: Bradley
mesh_terms: D054874:Athletic Performance; D006801:Humans; D007858:Learning; D012107:Research Design; D012916:Soccer; D013647:Task Performance and Analysis