Isac is a young promise in the middle blocker position
who was lapidated since the youth teams by Rubinho – Brazil’s national team
assistant coach – in São Bernardo team (SP). The player had already been called
to help in the training sessions of the adult national team and, in 2013, was
also called to become part of the team. In his first year, Isac was present in
the World League runner-up and the conquest of the Pan American Cup and Pan
American Championship. Isac was part of the team that won the silver medal in
the FIVB World League. The South American title was conquest by the middle
blocker and his teammates in the 2015 year. In the next year, Isac was part f
the team that achieved the silver medal in the FIVB World League. In 2017,
he was part of the team that won the South American Games and the FIVB Grand
Champions Cup.