Mark’s Magical Four (or Five) Minutes Your goal during this brief pre-game warm-up program is twofold: to enhance your tennis abilities early in the match (which will affect how you play later in the match) and to prevent injury. Ideally, you should spend twenty to twenty-five minutes preparing your body for the stress of playing a match (at any level) before you even touch a racket. However, it’s a rare recreational tennis player who will do that.