Mateo Cardona is officially set to compete in The Crown Presented by FloGrappling! Representing AOJ, the Colombian black belt has been one of the most exciting new faces to emerge on the black belt stage. Known for his dynamic movement and high-paced style, Cardona has quickly established himself as a dangerous threat in the black belt division. Now, he’ll have the opportunity to test his skills against some of the most elite competitors in the world as he battles for the throne at The Crown. Kingz Kimonos and Wilner & O'Reily are official sponsors of The Crown.