The 15th - seeded Australian hit 14 aces , with his fastest serve clocking 141 mph , and won 86 percent of his first serve points .
Kyrgios advanced to the quarterfinals , where he will face Roger Federer after Fed make quick work of Rafael Nadal .
The 15th - seeded Australian hit 14 aces , with Roger Federer 's fastest serve clocking 141 mph , and won 86 percent of his first serve points .
Kyrgios advanced to the quarterfinals , where he will face Roger Federer after Fed make quick work of Rafael Nadal .