The Athlete Burnout Questionnaire (ABQ) is a 15-item questionnaire that comprises three subscales: emotional/physical exhaustion, reduced sense of accomplishment, and sport devaluation. In a preliminary work, the ABQ was translated into Spanish and administered to 140 male soccer players. In the present study, we include alternative statements for weaker items. A 21-item version was administered to a sample of 326 soccer players of both sexes aged 14-23 years old. Using item and factor analyses, the questionnaire was shortened to 15 items. Then, the data was submitted to confirmatory factor analysis to corroborate the usual three-factor structure. Overall fit of the model was acceptable with a value of .97 for CFI, .96 for NNFI, .93 for GFI, .059 RMSEA, and .061 for RMR.