Rapper XXXTentacion was recently knocked out while performing on stage in San Diego. During the sixth stop of his ‘Revenge’ tour, the Florida rapper was sucker punched by an assailant assumed to be San Diego rapper Rob Stone. The attack was captured on video by those at the show and was quickly shared on social media. The video shows X getting sucker punched and hitting the ground while a group of security quickly jumps to apprehend the attacker. Rob Stone has had a bit of beef with X after Stone attacked his close friend and tour mate Ski Mask The Slump God earlier this year. No official word from XXXTentacion’s camp, but stay tuned for more details when they become available.