Mark Zuckerberg has been promoted to blue belt in Brazilian Jiu-Jitsu. He shared the news on his Instagram account, posting pictures with his coach Dave Camarillo, a fifth-degree Brazilian jiu-jitsu black belt. Zuckerberg has been training in jiu-jitsu and MMA since the COVID-19 lockdown, and he now trains in jiu-jitsu and MMA three to four times a week. Before his promotion to blue belt, he competed in two jiu-jitsu tournaments under the white belt master 2 lightweight division, which suggests that he had a beginners white belt in the sport.