The world No. 27, who had just won his sixth career ATP singles title two weeks ago in Washington, played a strong start with a hold which featured three aces, but his tough opponent gave him a run for his money and outperformed him at last, reports Xinhua news agency.<br> <br>"He was a really great talent but sometimes the head (is) not in the right place," Khachanov said. "It was a really difficult match for me. I had to really work it out, how to get the win."<br> <br>After losing, Kyrgios was seen smashing his racquets while nagging and occasionally cursing at Irish chair umpire Fergus Murphy with whom he had a running dialogue.<br> <br>In fact, Kyrgios was known for his bad temper, as he was defaulted after throwing a chair in Rome three months ago, while this time, he went ballistic after losing the second set.<br> <br>Khachanov will face Frenchman Lucas Pouille in the third round on Thursday.