The Court. There are three main tennis court surfaces: grass, hard, and clay. Of the three, clay is by far the slowest, most forgiving surface on your body. Because the top-most layer is composed of crushed brick, it provides a “cushioning” effect that puts less pressure on your joints. It is very common for players who struggle with ...
https://www.wilson.com/en-us/blog/tennis/events/we-love-you-clay-court-tennis