Two of grappling's most controversial stars will face off in the main event of WNO 23 when Nicholas Meregali takes on Vagner Rocha in a heavyweight bout. The two WNO veterans and ADCC medalists have never faced off before, though Rocha has taken on several of Meregali's New Wave teammates. In the feature bout of the evening, grappling legends Felipe Pena and Rafael Lovato Jr square off in a heavyweight bout.