What boxers would you put in the Top 50 athletes of all time?

All of them Deserve to be in top 50 athletes of all time no doubt. Boxing is one of the hardest sport in the entire world. Robinson, Ali and Armstrong deserve to be in top 10 either in top 5. Boxing is the hardest sport in the world you need to sacrifice a lot. Give me the hardest sport?..Boxing is the hardest for many reason. And all of them are totally great they dominate the sport for years and in that year boxing is one of the most popular.