MOSCOW, Jan 6 Australian Prime Minister Scott Morrison, commenting on the refusal in visa of the first racket of the world Novak Djokovic, noted the indisputability of the current rules of entry into the country. «Mr. Djokovic's visa has been canceled. Rules are rules, especially when it comes to our borders. No one is above the rules. Our strong border policy was crucial for Australia, where the death rate from COVID-19 is one of the lowest in the world, we continue to be vigilant, «Morrison wrote on Twitter.