The purpose of the current research is to identify the effect of hypoxic training on certain skills and physiological variables among tennis players. The research used the experimental method. The core sample was purposive and was composed of three players (number 1 to 3 in Egypt). Two other players participated in the exploratory study. The most important results are that hypoxic exercises, which depend on anaerobic training, had positive effects on both skills and physiological variables (resting heart rate, effort heart rate, VO2 max, and vital capacity) among tennis players in favor of post-test measurement. Therefore, the researcher recommends that hypoxic training should be used in the training of tennis players to improve some of their skills and physiological variables