The purpose of this study is to examine the effect of physical cleansing on the number of fouls in sport in terms of embodied cognition. Unlike previous researches mainly conducted in the laboratory settings, this study verified the effects of washing hands in real-life sports. The experiment was conducted on 10 teams participating in the nationwide futsal contest. Prior to the experiment, the cognitive sportspersonship scores of all participants was measured by questionnaires. At every match, two teams were randomly assigned to the hand-washing group and no hand-washing group. The number of official team fouls that occurred during the match between the teams was counted. Even though there is no difference in sportspersonship of the participants. The average number of fouls of the teams who washed their hands was significantly smaller than those who did not wash their hands. Washing hands were found to have influenced the fouling behaviors of the athletes during competition. Based on the results, the implication to future study and education of morality in sport was discussed.