Asked whether he was a "man on a mission" to get back to where he left off, the Serb could only agree: "Of course, that's why I'm here", he said. "The umpire said he didn't see". You could feel Djokovic's rage slowly building, bubbling nicely, but he managed to keep it in check to close out the match.
"After surgery I didn't think it was going to take me so much time to really get on the desired level". Then came another outpouring of emotion, but this time with a smile.
Elsewhere in the men's bracket, Novak Djokovic has had a lot of ups and downs over the past few years, but he's back in the semifinal of a Grand Slam. After his Round 3 win over Kyle Edmund, he accused the partisan crowd of being "unfair".
Djokovic incurred a warning for throwing his racket and then later complained of "double standards" when Nishikori was not punished for doing the same.
Novak Djokovic believes he is peaking at the right time as he looks to return to past glories by challenging for the title at Wimbledon.
The crucial turning point came in the third set, with it locked at two games apiece.
Nishikori is also on his way back up after injury, and the outcome could easily have been different had the Japanese won the game where he had Djokovic at 0-40 early in the third set. A final break clinched with a forehand victor, and the match was lost.
Things got worse between the two later when Djokovic felt Ramos failed to sanction Nishikori for a similar act in the fourth set.
Nishikori battled hard throughout.
Nishikori went a break up immediately in the fourth set, but that was not the start of a comeback as Djokovic reeled off four games on the spin which helped send him into the last four.
This time it was the Serb who saved three break points before he let out a huge roar when, with momentum on his side, he broke Nishikori in the next game. But there was no stopping the Serb once he made it on to Court One as he romped to a 6-4 6-2 6-2 win to reach the quarterfinals for a 10th time.
As he soaked in the applause of the crowd, win secured, there was that old Djokovic again, lapping up the acclaim, turning his hands to the sky and then conducting the crowd in their ripples of cheering.
"I want to use today's result as a spring from which to aim for a final place". "But hopefully I have two more matches to play".
"That was I think the biggest chance I had".
Having already been critical of what he described as unfair treatment from the Wimbledon crowd during his clash with Kyle Edmund, Djokovic was less than impressed with the umpires decision.