It is being widely reported that multiple times World Absolute Champion and current ADCC U99KG Champion has signed with Real Fight Championships to make his MMA debut in 2016. Vieira will be moving to the USA to train with American Top Team under Professor Ricardo Liborio.

Real Fight Championships is the event that is making a mark in Japan and where Kron Gracie made his MMA debut on their December 23, 2014 event.