Mauri Fernandes Fonseca (born 12 September 1941 in Porto Alegre[1]) is a former international freestyle and butterfly swimmer from Brazil.
[2] At the 1964 Summer Olympics, in Tokyo, he swam the 100-metre freestyle and the 4×100-metre medley, not reaching the finals.
[2] A month before the trip to Japan, Fonseca began his fitness in Forte da Urca in Rio de Janeiro.
He slept in barracks with the soldiers, there was no food with balanced diet, and even had a technician accompanying his training.
He also trained Sérgio Pinto Ribeiro, who participated in the 1976 Olympics in Montreal and 1980 in Moscow.