Guadalupe "Lupe" Contreras is a present-day ring announcer based in the United States. He is the regular announcer for cards shown on the Solo Boxeo television series, and has also worked on numerous other shows televised on pay-per-view, HBO, and other networks.
He is fluent in both English and Spanish, speaking both languages with no accent.
Contreras's catch phrase, delivered before the main event of every card he works, is "veremos quien es el mas macho!" (roughly translated, "let's see who the tougher guy is").