Marin Cilic offered sympathy to Rafael Nadal after the world number one was forced to retire from their absorbing quarter-final at the Australian Open.
Nadal's hopes of reaching the last four were dashed by an apparent injury to his upper right leg, which prompted the Spaniard to call for a medical timeout in the fourth set.
Sixth seed Cilic duly levelled the match and a limping Nadal, whose movement was significantly compromised, decided he could not continue after falling 2-0 down in the decider.
While there was much to admire in Cilic's performance on Rod Laver Arena, most notably a barrage of stinging forehands, the Croatian acknowledged his opponent's rotten luck.
"[It was an] unbelievable performance from both of us and really unfortunate for Rafa," said Cilic in an on-court interview.
"He's an unbelievable competitor, always gives his best and it's very unfortunate for him to finish this way."
"Really unfortunate for Rafa. He is an unbelievable competitor. Always gives his best and it's very unfortunate for him to finish this way. "— #AusOpen (@AustralianOpen) January 23, 2018
- @Cilic_Marin will play @Kyle8Edmund in the SF. Kudos to the on a superb performance nonetheless. #AusOpen pic.twitter.com/rMFIW9Wl4a
Cilic remained wary of a fightback even when Nadal was limping heavily at the start of the fifth set.
"When you're wounded, sometimes you are a little bit looser, so I was really paying attention to these first couple of games [in set five], just trying to keep my intensity up," he explained.
"It was absolutely important for me to keep that intensity up and continue with my own game, not looking across the net.
"As the match went further on, I was hitting more winners, playing better and better."
Surprise package Kyle Edmund now stands between Cilic and a third grand slam final appearance.
"He's had an amazing run in this tournament. Definitely big congratulations to him," said the 2014 US Open champion.
"For me, I have to keep going with my own game. Kyle is also a big hitter, great serve, great forehand, so I have to take things in my own hands and try to deal with my own [side of the] court in the best way possible."
|BREAKING NEWS: Boateng completes shock Barcelona switch|
|United Arab Emirates 3 Kyrgyzstan 2 (after extra time): Khalil penalty sets up Socceroos showdown|
|West Indies add Drakes to new-look coaching team|
|Barcelona is a huge opportunity – Boateng confirms shock move is close|
|Donnarumma wishes Higuain luck ahead of expected Chelsea switch|
|Qatar v Iraq: Katanec anticipating ´huge challenge´ in last 16|
|Nuno hit with FA misconduct charge for pitch celebration|
|Furious Carreno Busta and Zverev bow out, Djokovic marches on|
|#NotMartinFromWakefield – Siewert shows viral sensation the door|
|Djokovic feeling the strain after late-night Medvedev battle|
|Henderson sidelined again ahead of Six Nations|
|Australia 0 Uzbekistan 0 (aet, 4-2 on penalties): Ryan heroics see holders hobble onwards|
|Halep exit leaves four-way fight to be crowned number one at Australian Open|
|Super Bowl-bound Rams set for London return, Chiefs to face Chargers in Mexico|
|Huddersfield appoint Siewert as Wagner´s replacement|
|Genoa 0 AC Milan 2: Borini and Suso step up with Higuain left out|
|McTominay signs new Manchester United contract|
|Pizzi to stand down after Saudi Arabia elimination|
|Boateng closing in on shock Barcelona switch - reports|
|Catalans to defend Challenge Cup after resolving RFL dispute|
|Djokovic wears down Medvedev to reach last eight|
|Mouratoglou: I knew ´loyal´ Serena would not fire me after US Open turmoil|
|Barcelona B defender Wague accuses Ejea fans of racist abuse|
|I felt like I had been hit by a train - Halep upbeat despite losing Serena battle|
|Arsenal confirm Mislintat departure|
|Icardi will renew, 100 per cent - Wanda Nara offers latest Inter assurance|
|Japan 1 Saudi Arabia 0: Four-time winners send Pizzi´s men out|
|A souvlaki maybe named after him, a growing fan base – Tsitsipas creating Melbourne buzz|
|Barca winger Dembele out for 15 days|
|Strikers blown away by Hurricanes in Adelaide|
|Ireland lose Beirne for England and Scotland clashes|
|´Innate fighter´ Serena says character key to beating Halep|
|Hudson-Odoi ´an outstanding talent´ - Bayern great Ballack hails Chelsea youngster|
|Scotland call up four as hand injury forces Watson out|
|Serena comes through major Halep battle to reach last eight|
|Better than Rafa? Camacho cameo leaves Klopp unconvinced by transfer options|
|England job ´a privileged position´, says Southgate|
|Emery has confidence in Arsenal outcast Ozil|
|Zverev destroys racquet in Aus Open meltdown|
|From Villarreal to Aus Open quarters – Bautista Agut breaks major duck|
|Brees: I plan on being here next year and making another run at it|
|´Unf******-believable bro!´ - Brady stunned after reaching third straight Super Bowl|
|New England find answers, penalty costs Kansas City – three takeaways from Patriots´ win over Chiefs|
|Donald Trump congratulates Brady and Super Bowl-bound Patriots|
|Rose helps Timberwolves down Suns|
|Brady leads Patriots into third straight Super Bowl|
|Osaka overcomes Sevastova to reach quarters|
|Chelsea remain behind Sarri – David Luiz|
|McVay explains Gurley´s limited role in Rams´ win over Saints|
|Southgate hails ´tremendous talent´ Rashford|
|Long earns maiden PGA Tour win at Desert Classic|
|Flanagan resigns as Sharks head coach|
|Rams´ Robey-Coleman admits he committed penalty on controversial no-call|
|NFL admits they blew the call – Saints coach Payton|
|Terrible no-call, Goff shines – three takeaways from Rams´ win over Saints|
|Lonzo Ball to miss 4-6 weeks with ankle sprain|
|Patterson added to Australia Test squad|
|Zuerlein´s overtime kick sinks Saints and sends Rams to Super Bowl|
|It was a clear goal – Valverde dismisses Barca VAR controversy|
|Rashford can emulate Man United greats Ronaldo and Rooney – Solskjaer|
|Karmichael Hunt swaps Reds for Waratahs|
|Barcelona forward Dembele set for tests on sprained ankle|
|Neymar insists Barcelona and Real Madrid links not ´concrete´|
|England trio Nowell, Slade and Cowan-Dickie sign fresh Exeter deals|
|Windies coach Pybus not distracted by detractors|
|Barcelona 3 Leganes 1: Messi and Suarez combine to spare Barca´s blushes|
|I´m sure Michael would be extremely proud - Vettel hails Mick Schumacher|
|Young plays down injury fears for England trio Launchbury, Shields and Hughes|
|Pochettino: Lucas Moura fit for Chelsea clash|
|Ranieri positive on Fulham survival chances despite ´unbelievable´ Spurs loss|