Where is the club located that Silvan Hefti played for?
Silvan Hefti: Silvan Hefti (born 25 October 1997) is a Swiss footballer who plays for FC St. Gallen. FC St. Gallen: FC St. Gallen 1879 ("Fussballclub St. Gallen 1879") is a Swiss football club based in St. Gallen.
St. Gallen