<p>Australian maverick Nick Kyrgios sent defending champion and world number one Daniil Medvedev crashing out of the US Open in an explosive last-16 clash on Sunday.</p>.<p>Wimbledon runner-up Kyrgios triumphed 7-6 (13/11), 3-6, 6-3, 6-2 to reach his first quarter-final in New York where he will face another Russian, Karen Khachanov.</p>.<p>Medvedev will lose his world top ranking after being defeated by Kyrgios for the fourth time in five meetings.</p>.<p>Kyrgios fired 21 aces and a total of 53 winners past his outclassed Russian opponent.</p>.<p><strong>Also Read | <a href="https://www.deccanherald.com/sports/tennis/us-open-show-goes-on-without-serena-williams-after-legends-exit-1142013.html" target="_blank">US Open show goes on without Serena Williams after legend's exit</a></strong></p>.<p>"It was an amazing match, obviously Daniil as the defending champion had a lot of pressure on his shoulders, but I've been playing amazing the last couple of months," Kyrgios said after the win.</p>.<p>"What a place to do it -- packed house in New York. I'm extremely blessed.</p>.<p>"Losing the Wimbledon final was a bitter pill but now I want to go all the way here.</p>.<p>"I'm glad I can show my talents -- it's only taken me 27 years."</p>.<p>In a fast-paced, big-hitting first set, Kyrgios broke to lead 4-2 before Medvedev immediately repaired the damage.</p>.<p>A marathon tiebreak saw a 22-shot rally and Kyrgios save three set points.</p>.<p>The Australian clinched the opener on a fourth set point of his own after 63 minutes of tennis played at breakneck speed.</p>.<p>A furious Medvedev added spice to the encounter by complaining to umpire Eva Asderaki-Moore about the noise from the Kyrgios player box when he was serving from their end.</p>.<p>At the changeover, the Russian even threatened to refuse to play on if the disruptions continued.</p>.<p>Kyrgios left the court for a bathroom break but when he returned, his high-energy level dropped dramatically and Medvedev swept to a 5-1 second set lead on his way to levelling the contest.</p>.<p>Kyrgios then made the baffling decision to come around to Medvedev's side of the net to finish a point in the second game of the third set.</p>.<p>His illegal manoeuvre cost him what would have been a break point.</p>.<p>Kyrgios told a courtside TV reporter that he thought he it was a legal tactic.</p>.<p>"I'm going to look like an idiot," said the Australian after the match.</p>.<p>However, he quickly broke the equally baffled Russian for a key 3-1 lead before pocketing the third set.</p>.<p>A fired-up Kyrgios broke for 2-1 in the fourth set, was handed a code violation for swearing and responded with back-to-back aces timed at 122mph and 131mph to stretch to 3-1.</p>.<p>He backed it up with another break for 4-1 as Medvedev wilted under the barrage before Kyrgios sent down his 21st ace to seal victory.</p>
<p>Australian maverick Nick Kyrgios sent defending champion and world number one Daniil Medvedev crashing out of the US Open in an explosive last-16 clash on Sunday.</p>.<p>Wimbledon runner-up Kyrgios triumphed 7-6 (13/11), 3-6, 6-3, 6-2 to reach his first quarter-final in New York where he will face another Russian, Karen Khachanov.</p>.<p>Medvedev will lose his world top ranking after being defeated by Kyrgios for the fourth time in five meetings.</p>.<p>Kyrgios fired 21 aces and a total of 53 winners past his outclassed Russian opponent.</p>.<p><strong>Also Read | <a href="https://www.deccanherald.com/sports/tennis/us-open-show-goes-on-without-serena-williams-after-legends-exit-1142013.html" target="_blank">US Open show goes on without Serena Williams after legend's exit</a></strong></p>.<p>"It was an amazing match, obviously Daniil as the defending champion had a lot of pressure on his shoulders, but I've been playing amazing the last couple of months," Kyrgios said after the win.</p>.<p>"What a place to do it -- packed house in New York. I'm extremely blessed.</p>.<p>"Losing the Wimbledon final was a bitter pill but now I want to go all the way here.</p>.<p>"I'm glad I can show my talents -- it's only taken me 27 years."</p>.<p>In a fast-paced, big-hitting first set, Kyrgios broke to lead 4-2 before Medvedev immediately repaired the damage.</p>.<p>A marathon tiebreak saw a 22-shot rally and Kyrgios save three set points.</p>.<p>The Australian clinched the opener on a fourth set point of his own after 63 minutes of tennis played at breakneck speed.</p>.<p>A furious Medvedev added spice to the encounter by complaining to umpire Eva Asderaki-Moore about the noise from the Kyrgios player box when he was serving from their end.</p>.<p>At the changeover, the Russian even threatened to refuse to play on if the disruptions continued.</p>.<p>Kyrgios left the court for a bathroom break but when he returned, his high-energy level dropped dramatically and Medvedev swept to a 5-1 second set lead on his way to levelling the contest.</p>.<p>Kyrgios then made the baffling decision to come around to Medvedev's side of the net to finish a point in the second game of the third set.</p>.<p>His illegal manoeuvre cost him what would have been a break point.</p>.<p>Kyrgios told a courtside TV reporter that he thought he it was a legal tactic.</p>.<p>"I'm going to look like an idiot," said the Australian after the match.</p>.<p>However, he quickly broke the equally baffled Russian for a key 3-1 lead before pocketing the third set.</p>.<p>A fired-up Kyrgios broke for 2-1 in the fourth set, was handed a code violation for swearing and responded with back-to-back aces timed at 122mph and 131mph to stretch to 3-1.</p>.<p>He backed it up with another break for 4-1 as Medvedev wilted under the barrage before Kyrgios sent down his 21st ace to seal victory.</p>