The aim of this study was to evaluate the effect of club's social responsibility on the fan's intention to purchasing the sponsors products. Population of this study was consists of the fans of three teams that selected of the Iranian Football Pro League. By using the formula to determine the sample size, it for infinite population obtained 384. For data collection, the social responsibility questionnaire and purchase intention questionnaire were used. By using the Views of 6 sports management professionals, the formal validity of the questionnaires was checked. To verify the Construct Validity of social responsibility instrument, Exploratory and confirmatory factor analysis were performed. In order to verify the normality of data distribution, the skewnes, and Kurtosis indexes were used. For data analysis, statistical tests such as mean, standard deviation, factor analysis, Pearson correlation, and stepwise multiple regression method were used. Results showed that all dimensions of social responsibility have a significant effect on the fans reaction. Based on the research results, it is recommended to the managers that activities such as participating in the games aimed at helping needy people, implementing the federation’s rules, support of sport for all are suitable for enhancing the fan Purchase intention.

Focus of cause-related marketing efforts in the sports industry is related to the intangible nature of sport Business and the high degree of fans' willingness to charity programs. The purpose of this study is to investigate the role of sport fans' attitude in cause-related sport marketing. Survey of this study was the members of the Supporters' Association of Persepolis's and Esteghlal's clubs. And the questioner is sent them through Social Networks. In this study, simple random sampling was used and since the Statistical Society in this study was unlimited, Cochran formula was used to estimate the sample size. To analyze the data, structural equation method with Partial Least Squares (PLS) approach is used. Based on the results, both fans attitude toward cause-related sport marketing and fans attitude toward sport team has a   positive and significant effect on purchase intention of sport product and re-attention intention. According to the finding, when fans have a positive attitude toward the team and sport charity program, cause/brand fit lead to purchase intention and re-attention intention.