达尔文在《进化论》中提出“物竞天择，适者生存”的理论，曾几何时，网球是中等身材人士挑战体力及脑力的玩意儿，如今的网球员却差不多个个都是大块头，到底这种“高人”林立的现象是巧合，还是网坛淘弱留强结果？身材是否已成为胜负的关键所在？ 表面看来，这个“高人”理论 Darwin put forward the theory of “natural selection and survival of the fittest” in “Evolutionism.” In the past, tennis was a challenge for middle-class people to exercise physical and mental strength. Nowadays, almost all tennis players are big players. In the end, “High” everywhere phenomenon is a coincidence, or tennis Amoy weak results? Whether the body has become the key to the outcome? On the surface, this “expert” theory