Athletic Bilbao

Athletic Club (Basque: Bilboko Athletic Kluba; Spanish: Athletic Club de Bilbao), commonly known as Athletic Bilbao or just Athletic, is a professional football club based in the city of Bilbao in the Basque Country in Spain.
They are known as Los Leones (The Lions) because their stadium was built near a church called San Mamés (Saint Mammes).
Mammes was an early Christian thrown to the lions by the Romans.
Mammes pacified the lions and was later made a saint.