The men's Wimbledon quarter-finals line-up is complete - and formidable.
Fifth seed Juan Martin del Potro returned on Tuesday to finally finish off Gilles Simon on his fifth match point after the last fourth-round encounter of the championships was suspended under fading light on Monday night.
The Argentine's prize for his epic, four-hour-and-24-minute 7-6 (7-1) 7-6 (7-5 5-7 6-4 triumph over the unseeded Frenchman is no less than a last-eight shot at world No.1 Rafael Nadal.
Chasing his third title at The All England Club, Nadal is through to the quarter-finals for the first time in seven years after a 6-3 6-3 6-4 win over Czech Jiri Vesely.
Ominously, the Spaniard has advanced through the draw without dropping a set.
Nor has second-seeded titleholder Roger Federer, who is surprising even himself with his latest record-setting run.
Federer cruised into the last eight for a mind-boggling 16th time with 6-0 7-5 6-4 dispatch of dangerous French left-hander Adrian Mannarino.
The eight-times champion has now won 32 straight sets on on London's hallowed lawns.
One more straight-sets win would have Federer eclipsing his previous longest streak at the All England Club, when he won 34 sets in a row during his so-called vintage years in 2005 and 2006.
"I feel like these streaks just happen. You can't plan for them anyway," Federer said after booking a last-eight date with South African Kevin Anderson.
Three-time Wimbledon champion John McEnroe said it was a "privilege" to still be able to see the Swiss marvel strut his stuff on tennis's most famous centre court and, a month shy of his 37th birthday, Federer can barely believe it either.
When he lost lost his 2016 semi-final to Milos Raonic, Federer feared his career may be over after seriously injuring his knee in an on-court tumble.
But in a simply stunning two years since, the grand master has lost just seven of 88 matches and increased his record title haul to a magical 20 slams.
And all on a surgically-repaired knee.
"I told my team the other day that for me also, after all these years, it is surprising to be the No.1 seed, in the top-two rankings at 36," he said.
"I didn't think that was ever going to happen, to be honest."
Federer plays Anderson on Wednesday after the eighth seed edged flamboyant Frenchman Gael Monfils 7-6 (7-4) 7-6 (7-2) 5-7 7-6 (7-4) in one of the matches of the championship.
The pair were joined in the last eight for the first time by big-serving John Isner.
Isner added another 22 aces to his tournament-topping tally that now stands at 135 after the ninth seed's 6-4 7-6 (10-8) 7-6 (7-5) triumph over 19-year-old Greek sensation Stefanos Tsitsipas.
Isner is the last American man standing after his next opponent - Raonic - ended Mackenzie McDonald's breakout grand-slam performance with a 6-3 6-4 6-7 (5-7) 6-2 win.
Kei Nishikori - Nick Kyrgios's third-round vanquisher - also marched through, the Japanese superstar stopping fatiguing Latvian qualifier Ernests Gulbis 4-6 7-6 (7-5) 7-6 (12-10) 6-1.
Novak Djokovic is Nishikori's next challenge after the three-time champion thumped Russian Karen Khachanov 6-4 6-2 6-2.