Jiu Jitsu training often entails online sparring, referred to as rolling

https://telegra.ph/Gracie-Barra-Lake-Norman-Brazilian-Jiu-Jitsu-in-Cornelius-NC-10-26

Jiu Jitsu training often entails online sparring, called rolling, where trainees apply strategies in real-time versus immune partners. This technique helps improve timing, reflexes, and analytical skills, essential for efficient protection and competition