'I'm playing very tough matches against very tough opponents.
Riske broke for a 5-3 lead in the deciding set and clinched the win on her first match point when Barty sent a backhand wide. She can slow the game down quite well.
"It's a great week to play Serena and it's a match that I really look forward to playing", said Strycova.
Also joining Nadal in the last-eight was his compatriot Roberto Bautista Agut who reached his first Wimbledon quarterfinal and second at the majors this year when he defeated France's Benoit Paire 6-3, 7-5, 6-2.
Konta is under no illusion about the task facing her and when reflecting on her fortnight so far, she said: "Obviously the experience that I had in 2017 was a magnificent one, it was something that is incredibly special to me".
It was nearly a case of who or what would crack first, a player's nerve or a racket's frame as shot after shot was slammed away for a victor and the eerie sonics echoed around Centre Court.
Besides the best players from the last 15 years, Kei Nishikori is the only remaining top-10 player in the draw, with Dominic Thiem, Alexander Zverev, Stefanos Tsitsipas, Kevin Anderson, Karen Khachanov and Fabio Fognini all bowing out in the first week. She served and volleyed in the following game, and in the next a low sliced return teased an error from Konta as she broke back. But when Strycova started to slice and dice, to mix up the play and to drive Konta to distraction, everything changed.
"Every decision I made, every thought process, every opportunity that I gave myself, I have no regrets in doing".
But before these two women took to court, another player had already confounded the odds.
Peru defeats Chile to face Brazil in Copa America final
The Copa America was probably Lionel Messi 's last chance to win anything with his country. "We deserve a lot of credit for that". Edison Flores opened the scoring with a left-foot volley as he responded to a flick from Andre Carrillo to put Peru ahead by 1-0.
"Plan B should not be beating yourself", three-time Wimbledon champion John McEnroe remarked on the BBC.
And there was no way back from there as 33-year-old Strycova held her nerve to see out the second set 6-1.
Konta attributed Strycova's comeback exclusively to her opponent's good play - and bristled at the notion that it was her own mistakes that were at fault.
They have twice met on grass, the latter occasion coming in Birmingham previous year, with Kvitova winning in straight sets.
Konta has fallen out with the British media before. I enjoy that position to be in.
Konta's serve has improved immensely since past year, so much so that she had not been broken all week.
"It's great that I'm one of these three guys and still very successful".
Roger Federer has become the first player with 17 fourth-round appearances, also celebrating the 350th Grand Slam victory as the first player in history, staying on the course for the eighth Wimbledon crown.
"I'm really pleased that I've been able to make it to the second week in two successive grand slams. I hope that's what he does exactly from today on". I know they're good. "It's nice to be in the quarter-finals of a Slam again".