'I thought it was unnecessary to get the warning, ' he told the BBC after the 6-3 3-6 6-2 6-2 win.
The semi-final will be the 32nd of Djokovic's Grand Slam career but he has had to fight to get there.
Scheduled last on No. 1 Court, Djokovic and Khachanov did not get underway until after 19:00 local time at the All England Club on Monday.
"I think it's not fair, but it is the way it is in the midst of the emotions of a match".
Djokovic rallied to hold and only lost two more games from that point onward as he advanced to his first Grand Slam semi-final since the 2016 US Open.
The 12-time major victor prevailed despite picking up two code violations and accusing umpire Carlos Ramos of "double standards". I feel like I'm peaking at the right moment.
The Serbian battled through 6-3 3-6 6-2 6-2 on Centre Court to set up a meeting with either Rafael Nadal or Juan Martin del Potro in the semi-finals on Friday. It's not the first time I've been in semi-finals, I've been here before but I'll try to enjoy this victory'.
England's Jordan Pickford earns Jorge Campos praise The biggest thing for me is just continuing to win - and hopefully a few more wins over the next week'. It's down to what we do behind the scenes, what we work on in training, all the hard work to get here.
With his 24th seeded opponent saving three break points to hold serve at 2-1, Djokovic bounced his racket off the baseline in frustration and then seethed after he was given a code of conduct warning.
Djokovic, three times a champion at SW19, maintained the dominance he has shown throughout the tournament on his first serve.
Japan´s Kei Nishikori returns against Serbia´s Novak Djokovic during their men´s singles quarter-finals match on the ninth day of the 2018 Wimbledon Championships. I know how I threw the racket.
Nishikori, who had won only two matches in 15 meetings with the 12-time major victor, broke for 1-0 in the fourth but was broken straight back.
"Double standards, my friend", screamed the former world number one.
After seeing off big servers Kyle Edmund and Karen Khachanov, he faced Nishikori, who had recovered from his own serious injury to hit peak form in reaching his first Wimbledon quarter-final.
The Three Lions once again scored from a dead ball situation, their eighth set-piece goal of this World Cup . Rafa Benitez says England have a "great chance" of winning the World Cup for the first time since 1966.
Pacific Northwest, and are likely to get sent elsewhere as exporters scramble to avoid paying the tariff, a U.S. trader said. Asian markets appear to have taken in stride the USA move to raise tariffs on billions of dollars of Chinese products.
But that's not all Timberlake did to show his support for England as it takes on Croatia in the World Cup semifinal Wednesday. The players have already bettered expectations, with the whole of England buying into the team and their recent performances.
Zip-lining as been suspended at a Royal Caribbean Cruises excursion in Honduras after a couple was involved in a deadly crash. According to Honduras newspaper La Prensa , both were seriously injured and needed to be taken to hospital.
Kate's sister, Pippa , also wore floral stud earrings for the occasion, opting for a modern gold style unlike Kate's pearls. Meade is also a cousin of Prince William's stepmother, Camilla , Duchess of Cornwall, though several times removed.
The worrying thought about what we will do with ourselves once it is over can wait, because two well-matched semi-finals await. I could be with my parents, eating and drinking and watching the game on TV.
The US administration late on Tuesday released a huge list of new tariffs on $US200 billion worth of goods from China . Global markets are rattled this morning after America escalated the deepening trade war between the two countries.
The PML-N's first rally is expected to be held on Friday in which Nawaz Sharif is expected to announce the date of his return. NAB also asked Pemra to provide footage of the rally to ascertain the identity of the culprits.
She began floating in the water and everything seemed fine, but then one of the animals bit her and dragged her underwater. An Instagram model has been bitten by a shark during an impromptu photo shoot.
World number one Nadal faces a tricky test against power-hitter del Potro in his first Wimbledon quarter-final since 2011. The other quarter-final features American John Isner and Canadian former runner-up Milos Raonic .
But he is already experimenting with different options. "[Croatia] will be tough but I think we're going to get through". The manner of that performance instantly won over the home crowd and gave them a reason to cheer their team.
Ontario woman accidentally steals car from Walmart parking lot
Upon exiting the store, she climbed in a black Nissan - the vehicle was open and the key's were in the ignition - and drove home. They even tried to explain that the model she was trying to return wasn't on file but she apparently did not want to hear it.
Woman shot and killed by stray bullet in Mexico
The State Department is advising tourists to reconsider travel to Mexico State, where Mexico City is (shown in orange, center). As a mother, we always say things, but she inspired me to be better. "I'd give my life if she could just come back".
Ghanaians react to Russia's shootout defeat to Croatia
Nearly 11 years ago, Croatia beat England in a Euro 2008 qualifier, one that saw England miss out on the continental tournament. He hopes England will be more suited to their style of play, but added that recovering from two extended games will be hard .
Roger Federer loses epic stunner at Wimbledon
Anderson then served it out, ending things with a 128 miles per hour service victor , and raised both arms overhead. The tennis player and cricketer know each other personally and share great mutual respect.
NASA’s Kepler Telescope nearly out of fuel, forced to nap
NASA knew that one day Kepler would run out of fuel so NASA plans to start a 19th discrete "observation campaign" of "K2" mission. In that time, the Kepler will wake up and maneuver itself with the remaining fuel so that its antenna will point toward Earth.
Cardi B countersuing her ex-manager for $15M
In April Leonard sued her for $10m , claiming to have "played an integral role in developing her music career and public image". This apparently included her relationships as she claims Shaft would tell her "who she should and should not see romantically".