Cuban Taekwondo athlete banned for life.
"Matos was winning 3-2, with 1:02 in the second round, when he fell to the mat after being hit by his opponent, Kazakhstans Arman Chilmanov. He was sitting there, awaiting medical attention, when he was disqualified for taking too much injury time. Fighters get one minute, and Matos was disqualified when his time ran out.
Matos angrily questioned the call, pushed a judge, then pushed and kicked referee Chakir Chelbat of Sweden. Matos then spat on the floor and was escorted out."
But wait, there's more.
American taekwondo athlete makes claims of cheating and coverup.
All of this coming from a sport that might be dropped from the olympics.