Grand Slam Tennis Tournaments Governance

All three statements are correct. The four major tournaments (Australian Open, Roland Garros, Wimbledon, US Open) operate under a collaborative framework governed by the Grand Slam Board to unify rules and operational structures (1). Under ITF age eligibility codes, players who have reached their 14th birthday and maintain the necessary international competitive rankings can enter the tournaments (2). Furthermore, the rules place strict seasonal limits on the maximum number of direct 'Wild Card' tournament entries a player can accept within a calendar year to ensure competitive equity (3).