Cuba's Angel Valodia Matos kicked the match referee in the head in his bronze medal bout against Kazakhstan's Arman Chilmanov as the Olympic men's heavyweight taekwondo tournament descended into chaos yesterday. With the Cuban leading 3-2 in the second period, coaches from both teams ran on to the mat to remonstrate with the referee after he stopped the fight, apparently in Chilmanov's favour. After a heated exchange, Matos struck the referee in the head with a high kick. He also kicked another official. Matos was promptly disqualified and was later banned for life.