On court and off, Roger Federer had no answers as the superstar Swiss struggled to digest a deflating US Open quarter-final defeat that has once again sent British grand slam hopes soaring.
Federer was shellshocked after falling victim to Tomas Berdych's explosive firepower, but the world No.1's pain was Andy Murray's gain on a dramatic day and night at Flushing Meadows.
Federer's 7-6 (7-1) 6-4 3-6 6-3 loss overshadowed Murray's fighting four-set win over Marin Cilic, Andy Roddick's teary exit and Novak Djokovic's plea for a retractable roof at the grand slam that never sleeps.
The 17-times major winner offered no excuses for his flat performance and was in no mood for sugarcoating either.
"So many moments I thought: 'Man, it's just not happening for me.' It was just a very disappointing match for me," Federer said.
"Such an amazing summer I had. I really thought I was going to come out and play a solid match. I didn't do that tonight. I just didn't come up with the goods."
Berdych did - and it's not the first time the powerhouse Czech has stolen Federer's thunder on a big stage.
He removed Federer in the Wimbledon quarter-finals two years ago and also crushed the world No.1's 2004 Athens Olympic dream.
"Probably there is something in my game that he doesn't like and it makes him a bit struggle, I would say, and maybe bring him out of his comfort zone," Berdych said.
Berdych's earth-moving win booked the seventh seed a semi-final showdown with Murray on Saturday.
Murray could scarcely have imagined such a tantalising scenario a few hours earlier when he trailed Cilic by a set and 5-1.
Few would begrudge him a sneaky little fist pump at avoiding another clash with his grand slam nemesis after winning 17 of the last 20 games against 12th-seeded Cilic in a spectacular turnaround.
The 25-year-old is once again two tantalising wins from ending Britain's 74-year men's major title drought - and with no Federer, Djokovic or Nadal blocking his path to the final.
The dour Scot, though, has suffered too many major final heartaches to start celebrating just yet.
"Tomas Berdych is a great player as well. Let's show him some respect, too," Murray said after his 3-6 7-6 (7-4) 6-3 6-0 recovery mission.
Nor were there any celebrations from Djokovic after the titleholder advanced to his 14th consecutive grand slam quarter-final when ailing Swiss Stanislas Wawrinka retired trailing 6-4 6-1 3-1 in their stop-start fourth-round match.
Djokovic was dark at having to return on Thursday for his last-eight meeting with 2009 champion Juan Martin del Potro, the back-log forcing the Serb to play three days straight before possibly another two in a row if he made the final for the third year running.
"We spent 10 hours in this club on Tuesday and eventually got to the court and played two games with several interruptions because of the rain. It's not the first time we are experiencing that," Djokovic complained.
"The rain is a factor here in New York. For last four years we had Monday finals and it keeps on happening.
"I still believe that it is the most logical solution, if you still don't get a roof here, to get covers on the court."
At least Djokovic had the chance to return at all.
Del Potro denied Roddick that opportunity when, a week after the American announced his retirement, the Argentine finally ended the former world No.1's career with a 6-7 (7-1) 7-6 (7-4) 6-2 6-4 fourth-round win.