I think he has to be one of the top five best middle weights of all time both head to head and legacy wise.. Dude beat a handful of hall of fame men convincingly and went about 80 strait fights without a loss. he left the game never having been stopped in 100 professional bouts. Don't think I can see any middleweight knocking him out and very few even beating him. As for why he's forgotten I think that depends on who you ask. Monzon was a highly celebrated and great champion but seemingly not one who's name carried over to the next few generations as Ray Leonard, Marvin Hagler and Thomas Hearns' did. sometimes you have exceptional talent which lacks charisma... See Mike McCallum..
Weren't most foreign fighters and non-heavyweights from that era forgotten? He probably would have had some kind of a renaissance in popularity by now but for his disgraceful personal life.
"Most" And Duran wouldn't be nearly as well remembered in America if he hadn't won that close decision against Leonard and his "no mas" moment in the second fight.
Popular with who? I doubt many boxing fans under 40 know much at all about Sanchez. Even Arguello is mostly known for his fight with Pryor, thanks to hbo. (Also worth noting that both of them fought more recently than Monzon)
Arguello achieved legendary status in South America and in Nicaragua. Arguello's fights were literaly nation stoppers and akin to Manny Pacquiao's bouts in the Filipines. Every countryman watched his fights and with Nicaragua at war during those times he was a great distraction from the chaos and a source of immense pride. He was friggin mayor in his 50's still famous as ever. Many young South American boxing fans know about Arguello. Stop being so disrespectful and using any chance to takes things away from great fighters. These guys werent perfect but we can chat about their accomplishments objectively. You are too quick to cast dispersions and belittle them.
I attribute this to the dumbed down ignorant modern boxing fan. Monzon was the greatest of the middleweight champions.
Honestly I have trouble seeing him lose more then 3 or 4 rounds to anyone not named Roy Jones. Monzon is almost the perfect fighter he's a MW Ali but he has a bit more power in his right and actually throws body punches.
Monzon had a towering arrogance to go with his equally towering mean streak. He was rather cold and undemonstrative...with none of the at times lovable, warm fuzziness born of being humbled in defeat, like Duran. He didn't speak even a smidgeon of English, like Duran, and didn't let himself go between fights like the Panamanian, except perhaps in bouts of violence and cruelty. Monzon may very well have fought in Max Schmeling's era, for all the modern fruit fly fight fans are concerned, for all they know or understand of him.
He was very much like Ali in one respect, in that he had superior ring IQ and generalship, and could figure out what to do to beat everyone he fought. Monzon was the most dominant champion of the 70's, in my opinion. No flash, nothing spectacular or anything that didn't matter in the long run, just cold, brutally efficient economy....he just knew how to win, that's all.