How does the point system in tennis work and what are the key rules and strategies players need to understand to succeed in the game?

In tennis, the point system works by players earning points to win games, sets, and matches. Players must win four points to win a game, six games to win a set, and two sets to win a match. The key rules players need to understand include serving, scoring, and the boundaries of the court. Strategies for success in tennis include having a strong serve, good footwork, and the ability to anticipate and react to your opponent's shots.