WAKO USA President, Rob Zbilski and Team USA Head Coach, Mark Greubel discuss the 2013 WAKO World Championships in Guarujá, São Paulo, Brazil. Zbilski and Greubel also discuss how fighters that want to test themselves on a TRUE international platform can get involved with WAKO USA and have the opportunity to attend training camps, compete at the WAKO North American Open, and the upcoming WAKO Pan American Games.