Original sentence: The World Boxing Council still refuses to have their world champions take part in unification bouts with WBO champions.WBO champions generally struggle to be respected by the international media
Edited sentence: For an unknown reason, the World Boxing Council still refuses to have their world champions take part in unification bouts with WBO champions.WBO champions generally struggle to be respected by the international media, even though they have beaten WBC, IBF, and WBA world champions constantly and proved to be better champions that those of the other organizations