If the FA’s of all the national associations say players in the super league will not be selected then they are not banned just will not be pickedCan confirm nothing yet. It'll be a long drawn-out legal battle. Now it's just threats. Would like them to put out a press release release saying they'll ban clubs from all domestic and European competition though and follow through with it.
Italy done it for years with players in foreign leagues and I’m sure some Rugby nations do it as well