http://mmasucka.com/2018/03/29/russian-ministry-claims-us-refuses-to-grant-visas-out-of-2018-wrestling-world-cup/
A couple sources giving statements from a Ministry spokeswoman.
Claims this is "an act of direct and open discrimination" and "they don't play fair."
Personally I feel they're making excuses not to show up, knowing full well they'll have a poor showing. US is gonna run through this World Cup but it just won't be the same.