Muhammad Ali vs the K2 brothers

Would you like me to name my 50 cruiserweights who would whoop shot Ali like AJ whooped shot Johnson?

 

Johnson was 36 at the time. Ali was pretty shot by 36 but I'm willing to look at a list of 50 cruiserweights from any decade who could beat the Ali of the Spinks fights and then you can refine the list to cruiserweights who could take him out in two rounds. Ironically it was Johnson's 24th professional fight when he got stopped by Joshua. In Ali's 24th fight he was making his fourth title defense.