He is the eldest of the Vieira brothers (Ricardo and Leandro), who lead and fight for Checkmat.

[3][4] He competed in Absolute Championship Berkut Jiu-Jitsu 6 in Moscow and lost the fight via terra footlock.

On September 25, 2017, Vieira competed in the ADCC against former Ultimate Fighting Championship title contender, Chael Sonnen in the absolute division.

[5] Vieira returned after more time away from competition at BJJ Stars 7 on November 6, 2022, where he defeated Cleber Luciano 8-0 on points in a superfight.

[7] One of the most successful teams in contemporary Brazilian Jiu-Jitsu, CheckMat's worldwide headquarters is in São Paulo, Brazil.