This article describes an intervention on the precompetition routines of soccer players during a 19-week phase of a competitive season. Specifically, we worked with players to develop an enhanced understanding of the effectiveness of personalized preperformance music and imagery scripts in facilitating flow states and performance. Five male players (M age = 20.5; S.D = 1.6) participated in a single-subject multiple baseline across individuals design with multiple treatments and without reversal. Following a preintervention phase, participants undertook the intervention during their prematch warm-up. Flow and perceived performance were assessed immediately after each match. Results indicated that asynchronous music and MG-M imagery when combined had a facilitative effect on flow and perceived performance. Postexperimental player comments supported these findings and suggest that the intervention strategy has great potential for athletes during precompetition. Consultancy guidelines for the use of music and imagery within competitive soccer are presented in the discussion.

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