Reinier de Ridder, a former two-division champion in ONE Championship, has officially signed with the UFC and will make his debut against submission specialist Gerald Meerschaert on November 9 at UFC Vegas 100. Known for his dominant grappling, de Ridder brings a 17-2 record with 11 submission victories into the middleweight division, potentially shaking up the competition. His signing has generated considerable excitement among fans, although UFC President Dana White seemed unaware of the acquisition. De Ridder previously held both the middleweight and light heavyweight titles in ONE Championship but left the promotion after back-to-back losses to Anatoly Malykhin. His UFC debut will test his skills against Meerschaert, who holds the record for the most submission wins in UFC middleweight history.