To get to the next level in tennis, a middle school player, a collegiate player, an adult league player, a senior recreational player and a professional tennis player all need to work on their overall fitness.

The use of powerful strokes, the repetitive nature of the game, the various court surfaces, individual game styles and the variety of movement and stroke patterns and stances in tennis call for a proper tennis workout program.

Players such as Serena Williams, Andy Murray and Madison Keys have the ability to hit the ball just as hard in the first game of a match as in the final game of the third or fifth set.