Tennis boss details Russian's chances against rampaging Aussie

Karen Khachanov is taking on Nick Kyrgios in the US Open quarterfinals

Russia's Karen Khachanov meets one of the most in-form players on the planet when he takes on Australian rival Nick Kyrgios in their US Open quarterfinal on Tuesday night in New York - although there is hope for Khachanov to prevail, according to Russian Tennis Federation president Shamil Tarpischev.

Kyrgios, 27, continu