On Jose Antonio Rivera's record, there's a notation under his win over Arturo Nina that the "Bout took place in Staten Island (not New York City)."
Staten Island is part of New York City. It is one of the 5 boroughs that make up the city- the others being Manhattan, the Bronx, Brooklyn, and Queens.
Each of the boroughs is a separate county- Manhattan- New York County, the Bronx- Bronx County, Brooklyn- Kings County, Queens- Queens County, and Staten Island- Richmond County.
The notation should be deleted or changed to "Bout took place in Staten Island not Manhattan."