Final answer:
Keles mentioned playing soccer to illustrate the role of sports in social relationships and societal issues within the research context.
Step-by-step explanation:
Keles explained that he played soccer in an informal setting for 24 weeks over the course of research to provide context on the background within which the study or observations were conducted. This statement likely serves to give insight into how certain activities such as sports can foster social relationships and have an impact on various social issues such as social justice, human rights, anti-racism, and gender equality. Keles' experience connects with the broader themes of the research which include examining how shared activities can contribute to building and maintaining relationships and how they might influence participants in their dealings with societal issues.