Klitschko brothers are disrespected by some American fans (not by the true fans, a true boxing fan will have absolutely NO problem watching somebodie's ability to dominate the opponet with the JAB), But on the other hand Klitschkos don't really need to be recognized from the American fan base. Who cares if somebody in US knows them or not, Who cares if HBO airs their fights or not. They make a 60 000 soccer stadium Sold out and get 10 million $ per fight. Their accomplishments are recognized and they are respected as "One of the Greatest Heavyweight of all time" here in Europe. If you ask 10 seven years old kids, 7 of them will know who Klitschko is.