Facts: - other names: leozinho - years active: '' retired in 2013 '' - style: brazilian jiu-jitsu - team: checkmat - weight class: featherweight - birth date: 23 march 1976 - name: leo vieira - nationality: brazilian - birth place: rio de janeiro , brazil - rank: '' 4th degree black belt in brazilian jiu-jitsu '' Based on these bullet points, write a short biography describing the life of leo vieira .
The answer to this question is:
leonardo alcantara vieira commonly known as leo vieira or leozinho is a brazilian grappler , a brazilian jiu-jitsu instructor , and competitor .he was born march 23 , 1976 in rio de janeiro brazil .he is the eldest of the viera brothers -lrb- ricardo and leandro -rrb- , who lead of and fight for checkmat .