One of my most feared boxers in the game, Soda Popinski is a Russian boxer from the Soviet Union. In the arcade games that preceded Punch-Out, his first name had a reference to vodka, an alcoholic drink. So by 1985, his reference was changed to soda
Probably one of the toughest in the game, not many fighters are going to get past him easily.
Because I remember, getting many punches in and Soda Popinski would never stay down.