John McEnroe has called for tennis players to boycott Grand Slam tournaments to secure a larger share of revenue, following a decision by a group of top-10 players to end the public phase of their protest regarding prize money at these major events. McEnroe, a seven-time Grand Slam singles champion, stated that players should be treated as partners in the four key tournaments, asserting that their lack of control over revenues and schedules has led to significant tension within the sport.