PurposeThe study aims to identify critical factors that influence football fans’ support of their favorite team by examining the impact of social responsibility, brand credibility and team brand equity on patronage intentions of professional football teams.Design/methodology/approachAn online survey collected data from 331 football fans of the Persian Gulf Premier League (PGPL) in Iran. The data were analyzed using partial least squares structural equation modeling (PLS-SEM).FindingsThe findings revealed that corporate social responsibility (CSR) is able to influence brand equity, brand credibility and patronage intentions. Also, brand equity and brand credibility were found to be positively related to patronage intentions. In addition to that, the findings show that brand equity and team credibility partially mediate the relationship between CSR and patronage intentions.Practical implicationsThe findings provide valuable insights to sports teams/club managers aiming to attract new fans and retain current ones by investing in CSR and enhancing brand credibility and equity. Strategies to integrate CSR into relationship marketing and brand management are outlined.Originality/valueThis study empirically highlights the critical role of adhering to CSR and the effects of brand credibility and equity in enhancing patronage intentions among football team fans.