Erich Rademacher (1901-1979), the legendary goalie of "Hellas Magdeburg", winner of gold medal with the German Water Polo team in Amsterdam 1928 and winner of silver medal in Los Angeles 1932 Olympic Games.
Rademacher competed in Amsterdam 1928 Olympics as swimmer, winning the silver medal in 200 breastroke.
Source: www.hall-of-fame-sport.de/