Karo Parisyan was scheduled to fight Matt Hughes for the WW title
he got injured and replaced by Joe Riggs
His career/life took took a nosedive due to pain killer addiction stemming from the injury
True but the thing is, when Hughes didn't pan out, he fought Nick Thompson who later went on a winning streak. Then he lost to Diego but then he had three good fights and looked great against Burkman. His loss to Alves was the one that made his career go to shit.
Maybe Rory when he was with the UFC?Cowboy
Maia
Faber
Florian
Guillard
Others?
It happens to champions too: Bendo, Aldo, Weidman...
Please explain how Aldo following up a loss to Conor with an absolute domination of Frankie and then a competitive loss to Max can be described as a collapse. Name a FW other than Max who you would favor over Aldo right now.