Kyrgios knocked out of US Open by Khachanov after epic five-set battle

Nick Kyrgios saw his bid for a maiden Grand Slam title end in the quarter-finals of the US Open on Tuesday night after Karen Khachanov edged their five-set thriller inside a raucous Arthur Ashe Stadium.

Wimbledon finalist Kyrgios had emerged as a genuine title contender after eliminating world No 1 and defending champion Daniil Medvedev in the fourth round, but in a battle of the power-hitters, the Australian went down 7-5, 4-6, 7-5, 6-7, 6-4 to 27th seed Khachanov, who is into his first major semi-final.

Khachanov, 26, fired 30 aces and a total of 63 winners and will face fifth seed Casper Ruud of Norway for a place in Sunday's final.

"I did it, guys. Finally, you are showing me some love," Khachanov told the mostly pro-Kyrgios crowd inside the stadium. "It was a crazy match I was expecting it would be like this. I'm ready to run, to fight to play five sets. We played almost four hours and that's the only way to beat Nick."

The Russian said he had "nothing to lose" when he faces French Open runner-up Ruud on Friday.

"I would like to win it," he said. "But as deep as you go the expectations rise up. I did the step forward, I made my first semi-final and I think I have nothing to lose.

"I just want to go for it and be ready for the next match and hopefully it will be a good one."

KAREN KHACHANOV: GRAND SLAM SEMI-FINALIST