The contribution focuses on the contemporary state of Czech tennis terminology. It outlines how the currently used borrowings function in the Czech tennis vernacular and their level of adaptation to the Czech orthographic, phonological and morphological systems. The aim of this article will be to show how these lexical items are being adapted to the Czech language on different levels. The vocabulary under investigation will be collected from the articles published in the Czech newspaper magazines during the summer Olympic Games 2020, though, due to covid-19 pandemics, taking place in Tokyo 2021. To support the topic, the introductory passages include some general notes on borrowings and Anglicisms in Czech as well as on history of this popular sports activity.