Matthias Sindelar was arguably the greatest soccer player of his generation. He won numerous trophies for his club and country, and as Captain of Austria, he led the National Team on an unprecedented unbeaten streak and even represented his nation in the World Cup.

He was immortalized, however, not for his playing ability, but instead for his defiance of his nation's conqueror, Adolf Hitler. Mere months after Austria was absorbed inside of Germany's borders, Matthias died under mysterious circumstances. The cause of his death-and that of his fiancée who died with him-is still questioned to this day.