The game of football changes from year to year and places ever higher demands on players, which when not met often manifests as frustration. Frustration is often expressed as aggressive behavior directed towards people or material things around them, which often reduces the player's focus on the game and consequently also the success of performing technical and tactical elements. The purpose of the research was to examine the relationship between different types of aggression and the success of performing technical elements in young football players. The research was designed as a quantitative, non-experimental study. The sample included 150 football players of different age categories from 11-19 years, who played in two clubs of different competitive ranks. Data on aggression were collected using a standardized questionnaire (Buss and Durkee questionnaire), while technical performance was assessed based on predefined criteria of football knowledge. Spearman's correlation coefficient and non-parametric tests of differences were used to analyze the data. The results showed that there were no statistically significant associations between most types of aggression and the performance of technical elements. The associations found were rare, weak and limited to individual technical elements and age categories. Also, no statistically significant differences in aggression were found between different age categories and between clubs of different competitive ranks. Based on the results, we can conclude that aggression in itself is not a decisive factor in the technical performance of young football players, but rather it is a complex phenomenon, the influence of which depends on developmental, personality and contextual factors. The findings of the study contribute to a better understanding of psychological factors in youth football and emphasize the importance of a holistic approach in the development of young football players.
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