The document discusses competition in sports labor markets. It notes that these markets are not perfectly competitive due to high entry barriers and special limitations of athletes. Restrictions imposed by sports associations can limit competition for players. While some cooperation is needed for the market to function, competition authorities analyze issues like wage-fixing agreements and no-poach agreements between employers which are considered anti-competitive. The document also describes a case in Colombia where soccer clubs were alleged to have engaged in a no-poach agreement regarding players.