Which Olympic gold medal-winning amateur boxer is the younger brother of Somrot Kamsing?
Somrot Kamsing:  An older brother of Somluck Kamsing, he was defeated in Atlanta, Georgia in the quarterfinals of the men's light flyweight division (– 48 kg) by Bulgaria's eventual gold medalist Daniel Petrov. Somluck Kamsing: Somluck Kamsing (name used in the 1996 Summer Olympics) or Somrak Kamsing (Thai: สมรักษ์ คำสิงห์ ; rtgs: "Somrak Khamsing" ; born January 16, 1973) is a Thai Muay Thai kickboxer and Olympic gold medal-winning amateur boxer.
Somluck Kamsing