Drawing on social identity theory and self-categorization theory, we outline an approach to sport psychology that understands groups not simply as features of sporting contexts but rather as elements that can be, and often are, incorporated into a person's sense of self and, through this, become powerful determinants of their sport-related behavior. The underpinnings of this social identity approach are outlined, and four key lessons for sport that are indicative of the analytical and practical power of the approach are presented. These suggest that social identity is the basis for sports group (1) behavior, (2) formation and development, (3) support and stress appraisal, and (4) leadership. Building on recent developments within sport science, we outline an agenda for future research by identifying a range of topics to which the social identity approach could fruitfully contribute.
Key Points• We outline a social identity approach to sport psychology based upon social identity and self-categorization theories.• We argue that this approach has the potential to make a significant, unique, and powerful contribution to the analysis of an array of phenomena and behaviors that are at the heart of sport and sport psychology.• In particular, the approach offers a comprehensive analysis of the ways in which individual psychology both structures, and is structured by, the dynamics of group life; this involves seeing groups not simply as features of sporting contexts but rather as elements that can be, and often are, incorporated into a person's sense of self and, through this, become powerful determinants of their sport-related behavior.