Novak's Gangnam Style

Novak Djokovic showed off his dance moves on court with a fan while celebrating his comfortable straight-sets triumph over Austria's Andreas Haider-Maurer in the US Open second round. And unlike his half-hearted bopping with Serena Williams at Wimbledon in July, this time the world No 1 really let rip. Djokovic bopped to the Bee Gees back in July as he revived an old tradition by dancing with Williams at the Wimbledon champions' dinner and the world No 1 seemed to be seeing the disco lights again, throwing shapes with a New Yorker in front of a jubilant home crowd.      -- Internet