aficionado vs sports fan

aficionado and sports fan both are nouns.

Word	Noun	Adjective	Verb	Adverb
aficionado	Yes	No	No	No
sports fan	Yes	No	No	No

As nouns, sports fan is a hypernym of aficionado; that is, sports fan is a word with a broader meaning than aficionado:

Other hypernyms of aficionado include fan, rooter.

aficionado (noun)	sports fan (noun)
a serious devotee of some particular music genre or musical performer	an enthusiastic devotee of sports
a fan of bull fighting