On 8 June 2013 Petsingkorn Sit Kru Praeng, competed in the War In The Cage 4 amateur MMA competition at Thammasat University, Rangsit campus in the 61.2 kilo weight class. It was a one day tournament in which the champion had to fight three bouts. In the first bout he fought Gonggriat, a Muay Thai fighter much bigger than him, but Petsingkorn attacked, Muay Chaiya style, in rapid fire combinations and controlled his opponent on the ground as well until his opponent tap out in the second round. [youtube]https://www.youtube.com/watch?v=jqAx_gXtk0E[/youtube] In the semifinal bout, Petsingkorn faced Judo fighter Spartan. Petsingkorn was taken to the ground and was able to get to…