According to Band Santa Catarina, Renovacao Fight Team featherweight prospect and training partner to former Bellator tournament champion Maiquel Falcao, Kaue Mena, is in serious condition following an altercation outside a gas station in Southern Brazil.
From the video it appears that Falcao got into some kind of disagreement with a pair of women inside the gas station. Words were exchanged and he appears to push/slap one of them away. After that a host of men enter and begin fighting with Falcao and his friends. The fight spills out into the the gas station parking lot where one of the men fighting Falcao hits him with what appears to be a piece of wood.
A few seconds after that Kaue Mena is struck from behind by an assailant and proceeds to be punched and kicked mercilessly while unconscious. Mena is currently in serious condition at the intensive care unit at the Hospital do Coração. No arrests have been made in connection with the attack, but we'll be sure to keep you updated as more information becomes available.
Worth noting, this isn't Falcao's first brush with extra curricular fistics. He was also picked up in 2010 for a 2002 charge of assault against an ex-girlfriend (although the arrest was apparently the result of a misunderstanding of the terms of his house arrest at the time). These charges eventually led to his release from the UFC.