This study aims to explore how gender relations permeate football practice when girls and boys practice together. To do so, we carried out an ethnographic study in a private school in the city of Campinas (in the state São Paulo in Brazil). This involved 22 visits to the school, 15 semistructured interviews and filming six training sessions of a class with boys and girls aged between 13 and 28 years old. We examined gender relations and the participation of players, parents and instructors. The results indicate that, for this particular school, training reinforces traditional football teaching, placing emphasis on basic technical skills. In addition, the procedures used do not enable all students to learn the sport equally and do not consider individual skills of players in relation to teaching stages. We found that gender prejudice is both verbally and physically expressed by the teacher and the students, reinforcing male hegemony when it comes to football practice. The study has also opened up new perspectives regarding what the practice of this sport means. For example, we identified three factors that stimulate football practice within this group: to play professionally, to keep fit and pleasure in practicing this sport.