So to limit the risks, do not hesitate to communicate. It is better to say more than not enough.
Of course, the partner who receives the information must be receptive, otherwise the communicant will no longer trust his partner.
In the video, we see Marta Marrero play a defense ball. But the tip of his racket hit the face of his partner Alejandra Salazar who came to help ... Conclusion: A pretty wound ...
But fortunately nothing serious!