Bad boy Kyrgios: Game is 'biased'
Both players were making their fourth round Miami debuts but it was Kyrgios who triumphed on the back of 11 aces.
After a tight first set that took the pair to tiebreak, the Australian went on to dominate the second set, winning the match 7-6 (7-3) 6-3.
In a win that might help pave the way to forgiveness over his on-court antics, the 20-year-old becomes the first Australian since Lleyton Hewitt to reach the quarter-finals in Miami 14 years ago and the youngest since Juan Martin del Potro in 2009.
Not that the potential prestige stopped his usual theatrics creeping into the game.
After receiving a warning for hitting a ball out of court Kyrgios could be heard arguing with the umpire that “if anyone else, like if Rafa [Nadal] that, nah, nah, you’d keep it cool. This game is biased as anything.”
Kyrgios will now go up against big-server Milos Raonic in the first Masters quarter-final of his career.
Having convincingly crushed Bosnian Damir Dzuhur 6-0 6-3 in his own 54-minute fourth round, the Canadian will be looking to wreak his revenge and continue an impressive season that saw him reach the final at Indian Wells earlier this month.
A victory for Kyrgios could see him move inside the world’s top 20, reclaim the Australian top spot from rival Bernard Tomic and offer him the opportunity to silence some of his critics.
The world number 26 first burst to prominence at Wimbledon in 2014 when he stunned Rafael Nadal on his way to the quarterfinals, leaving many to believe he would soon be challenging for grand slam titles.
But his career has since been beset by a series of controversial incidents.