World Rugby says plans for Nations Championship will include relegation

• Fiji and Japan would be added to Rugby Championship• World Rugby says all teams will have a ‘potential pathway’World Rugby has insisted promotion and relegation will be a part of its proposed new world league despite opposition from within the Six Nations. The global governing body has also staunchly defended its proposal – described as “undercooked” by the Rugby Football Union – and responded to accusations it was planning to exclude the Pacific Islands.World Rugby came under considerable fire last week after reports that its Nations Championship would feature the Six Nations and the Rugby …