December 11 1983 this date sticks in the memory of the Grêmio supporters With a spectacular performance by Renato Portaluppi and a team that had as much strength as talent Grêmio defeated the mighty Hamburger SV the Champions League winner and was crowned world champion In 1983 O ANO AZUL the responsibles of this achievement count each step of the long road to the title which began with the conquest of the Copa Libertadores da América