The present paper 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 with some semantic peculiarities. The aim of this article is to show how these lexical items are being adapted to the Czech language on different levels. The vocabulary under investigation was primarily collected from the articles published in Czech newspaper magazines and other online sources released during the summer Olympic Games 2020, though, due to covid-19 pandemic, taking place in Tokyo in 2021. To supplement the topic, the introductory passages include some general notes on borrowings and Anglicisms in Czech, as well as information on this popular sport.