The Mega-Sena is the largest lottery in Brazil, organised by the Caixa Econmica Federal bank since March 1996.

It is one of the most successful clubs in Brazil and the Americas, being the third club with the most international titles in Brazil, with seven trophies. Its historical rival is Grmio Foot-Ball Porto Alegrense, with whom it contests the Grenal, one of the greatest derbies of the world.