Serbian contestant Djokovic to celebrate the victory 2016 season Australian Open today to start the quarter finals of the men's singles competition, the competition, the defending world champion Serbia kings Novak Djokovic 6-3, 6-2, 6-4 defeat Japanese star Kei nishikori, career sixth rounded out the Australian Open semi-finals, and Roger Federer, who will compete for the final berth. Novak has won five Australian Open Men's singles champion, is the open era...