noun
blood sport
Refers to sports or spectacles involving violence, injury, or killing, such as bullfighting or cockfighting. The term carries a negative connotation.
闘牛はブラッドスポーツの一種と見なされることがある。
Bullfighting is sometimes regarded as a type of blood sport.
動物愛護団体はブラッドスポーツの禁止を求めている。
Animal welfare groups are calling for a ban on blood sports.
noun
sport involving pure-bred animals
A less common, somewhat euphemistic use referring to sports like horse racing or dog racing that involve pedigree animals. This sense is not widely used and may be considered dated or niche.
競馬はブラッドスポーツとも呼ばれることがあるが、この用法は一般的ではない。
Horse racing is sometimes called a blood sport, but this usage is not common.
Loanword from English 'blood sport'. The second sense may be influenced by the idea of 'bloodlines' in pedigree animals, but this usage is not standard in English and appears to be a Japanese-specific extension.