Grigor Dimitrov booked an Australian Open quarter-final meeting with Kyle Edmund after overcoming home hope Nick Kyrgios in four sets on Sunday.
The Bulgarian, seeded third at Melbourne Park, prevailed 7-6 (7-3) 7-6 (7-4) 4-6 7-6 (7-4) in a gripping encounter played in front of a partisan crowd on Rod Laver Arena.
Both men were close to their peak form, Kyrgios serving superbly, only to crack at a couple of key junctures as the tension mounted.
Not since Mark Edmondson in 1976 has the Australian Open seen a home men's champion and the wait goes on as Kyrgios – whose best effort at this slam is his quarter-final appearance in 2015 – bowed out.
Dimitrov was a beaten semi-finalist last year and the world number three will be fancied to at least repeat that feat this time around as he prepares to take on Briton Edmund, for whom Tuesday's clash will represent a maiden appearance in the last eight of a major tournament.
Kyrgios' serve was the first to come under real pressure in game six as he saved three break points – two with forehand winners either side of an ace.
A well-placed volley handed Dimitrov the advantage in the tie-break, which he built upon as Kyrgios went long and the Australian's double-fault handed his opponent the opening set.
Kyrgios' miscued volley gave his rival a break at 4-3 in the second and Dimitrov had set point three games later before Kyrgios raised the roof by forcing a backhand error to get it back on serve.
Once again Dimitrov kept his cool in the breaker, however, as a stunning pick-up on set point made Kyrgios hit long, leaving him with a mountain to climb.
He summoned his reserves, however, as a wide Dimitrov forehand gave the 17th seed the advantage at 3-2 in the third and a resounding hold to love, featuring two thumping aces, sealed the set.
Both men saved break points with aces in the early stages of the fourth – Kyrgios doing so again at 3-4 30-40, only to subsequently send a simple smash into the net.
That basic error did not prove immediately costly as Dimitrov wilted with the finish line in sight and Kyrgios sent a backhand winner up the line to hit back.
But in the tie-break, the turning point arrived as Kyrgios netted a straightforward forehand, Dimitrov sealing the victory in fitting fashion with an outstanding cross-court winner that flew past Kyrgios as he approached the net.
Dimitrov  bt Kyrgios  7-6 (7-3) 7-6 (7-4) 4-6 7-6 (7-4)
Dimitrov – 64/26
Kyrgios – 76/55
Dimitrov – 16/7
Kyrgios – 36/7
BREAK POINTS WON
Dimitrov – 2/9
Kyrgios – 3/5
FIRST SERVE PERCENTAGE
Dimitrov – 70
Kyrgios – 65
PERCENTAGE OF POINTS WON ON FIRST/SECOND SERVE
Dimitrov – 81/40
Kyrgios – 79/50
Dimitrov – 157
Kyrgios – 156
|Salah deserves Ballon d´Or if Liverpool win Champions League – Owen|
|Wasps flanker Willis out for up to a year|
|Real Madrid v Liverpool: Is the Champions League enough to save Zidane?|
|I was left out on reputation - Nainggolan angered by World Cup snub|
|Pellegrini targets Europe with West Ham|
|Lopetegui extends Spain contract|
|Edinburgh-bound Barclay´s Scarlets career over following Achilles surgery|
|Saints swoop for NRL star Naiqama|
|Zidane: Be careful when you criticise Ronaldo|
|It doesn´t get better - Stevens relishing best-of-three shootout for Celtics|
|Favre named new Dortmund boss|
|LeBron and Lue hail evergreen Kyle Korver|
|Kane named England captain for World Cup|
|Wright slams Arsenal over Emery: It´s like a sushi shop!|
|Pellegrini named new West Ham manager|
|Late drama and sustained Ronaldo magic - Real Madrid´s road to the Champions League final|
|Yankees´ home runs fuel win over Rangers|
|LeBron scores 44 points as Cavs level series against Celtics|
|Kaufusi re-signs with Melbourne Storm|
|LeBron James sets record for postseason field goals|
|Monchi: Alisson will only leave Roma if I come out of retirement!|
|No offers from Chelsea or Zenit, says Sarri´s agent|
|No Champions League pressure as PSG´s Tuchel calls for patience|
|Nationals´ Juan Soto hits homer in second career at-bat|
|Buffon to decide future in a week amid PSG speculation|
|Eli Apple embarrassed by 2017 antics, ready to move forward|
|Bills release Richie Incognito from reserve/retired list|
|Gentry and Pelicans want Cousins back in New Orleans|
|MLB extends Blue Jays closer Osuna´s administrative leave|
|Lloris, Jedinak and Kjaer ask FIFA to allow Guerrero to play at World Cup|
|Wolfsburg preserve Bundesliga status after play-off win over Kiel|
|Zidane was my idol and always will be - Wijnaldum|
|Liverpool ready to fly out of the blocks in Kiev - Henderson|
|Montreal Impact 0 LA Galaxy 1: Ibrahimovic sent off for slapping opponent|
|Real Madrid v Liverpool: Salah, Ronaldo lead the line in combined XI|
|Bertens keeps hat-trick hopes alive in Nuremberg|
|Monfils and Mannarino fail to fly the flag in Lyon|
|Morata, Fabregas, Herrera and more in Spain´s World Cup rejects XI|
|Reina to face FIGC hearing|
|Emery set to be appointed by Arsenal - reports|
|LeBron ´appreciative´ of hometown effort to put up statue of him|
|Cazorla leaves Arsenal after injury nightmare|
|Derby´s Rowett seeks permission for Stoke talks|
|Messi physically and mentally ready for the World Cup, Sampaoli proclaims|
|Murray expected to return at Rosmalen Grass Court Championships|
|More to Madrid than just Ronaldo - Robertson|
|Wolff: Red Bull and Ferrari favourites in Monaco|
|Iniesta hailed by Xavi as ´the most talented player in the history of Spain´|
|If you Googled ´European nights´, Liverpool would be top result - Klopp|
|Icardi cut from Argentina World Cup squad|
|Test recall a ´fantastic surprise´ for Buttler|
|Klopp needs Premier League to be a Liverpool great – Johnston|
|Salah is ´definitely´ world´s best - Lovren|
|Rhinos captain Watkins ruled out for eight months|
|No clue - Klopp defiant over Can to Juventus claims|
|Younis tips Babar for Pakistan greatness|
|Germany squad numbers hint at World Cup good news for Neuer|
|WATCH: Moto3 rider makes spectacular jump over crashed rival|
|Leaving out Morata ´painful´ for Spain boss Lopetegui|
|Gustard to leave England role for Harlequins|
|Nainggolan retires from Belgium duty after World Cup snub|
|Spain striker Morata misses out on World Cup selection|
|LeBron or Kawhi could lead Lakers to the Finals - World Peace|
|Serena steps up Roland Garros training ahead of French Open|
|Nainggolan left out of Belgium´s World Cup squad|
|The long goodbye: Iniesta sits alone in Camp Nou after final Barcelona match|
|Wane to leave Warriors at end of season|
|Dr Fury will see you now - Tyson plans future career in medicine|
|Harden, D´Antoni rue ´soft´ Rockets performance in Warriors drubbing|
|Liverpool players can change their lives in Kiev, says Gerrard|