Kyrgios tops Troicki in straight sets, advances to 3rd round

Nick Kyrgios overcame distractions from a faulty speaker system at Hisense Arena and a lot of noise to beat Viktor Troicki 7-5, 6-4, 7-6 (2) in the second round of the Australian Open.

The 17th-seeded Kyrgios complained numerous times to chair umpire James Keothavong about noise coming from his microphone during points. Eventually, the umpire turned the microphone off and just shouted the score after each point.

Keothavong's night was about to get worse. With Kyrgios serving in the tiebreaker, Troicki hit an errant backhand return that slammed directly into the chair umpire's head. The Serbian player walked smiling to the umpire's chair to apologize, while Keothavong joked, ''It's not my day, is it?''

Troicki fended off one match point in the ninth game of the third set and then broke in the next game to force the tiebreaker, but he couldn't challenge Kyrgios in the decider.

Kyrgios has advanced beyond the third round only once at his home slam when he reached the quarterfinals in 2015.