International sanctions can significantly impact professional leagues by limiting access to funding, player recruitment, and television contracts. Leagues that operate in countries subject to sanctions may face challenges in attracting sponsors and international players due to travel restrictions and negative perceptions. Additionally, the quality of competition may decline if top talent is unable to participate. Fans may feel disillusioned, leading to decreased attendance and engagement. Overall, sanctions not only affect the financial stability of leagues but also influence the broader sporting culture in those regions.