Novak Djokovic did not become number one after being beaten by Jiri Vesely in the quarter-finals of the Dubai Tennis Championships
The Serbian is currently replaced by Daniil Medvedeb at the top of the rankings for the men's category.
Vesely said that he didn't think that he would actually stand a chance against noval, and it was a really great feeling.
Medvedev of Russia will become the first player besides Djokovic, Roger Federer, Rafael Nadal and Andy Murray to climb to the top of the rankings in 18 years.
Vesely beat the 20-time Grand Slam champion in 2016 on clay on Monte Carlo and repeated the feat on Dubai hardcourts.
Djokoavic's double fault on a breakpoint in the opening set gave Vesely the initiative to take charge of the match to serve
In the second set Djokovic fought back and equalized, but in the tie-break Djokovic slipped
Lorenzo Musetti defeated by Novak Djokovic in the Dubai Tennis Championships
Winning the Dubai Tennis Championships in his first match was the best experience Novak Djokovic had after his vaccinations and visa saga in preparation for the Australian Open.
When he was deported from Australia on January 16 last, it became the talk of the world news. But now he's back with a win over Lorenzo Musetti
and it becomes a pleasant experience.
Thanking the crowd at his first game of 2022 "I couldn't have chosen a better place to start the season - it was the best experience tonight.
"Overall, it was a straight-sets win so of course I have to be content, especially after not playing for two and a half, almost three months."
Novak Djokovic saved seven break points against world number 58 Musetti
and will face either Russia's Karen Khachanov or Australia's Alex de Minaur in the second round.
Novak Djokovic also said I am very grateful and very happy
Novak Djokovic Detained by Immigration Ahead of the 2022 Australian Open
MDP Live - Tennis player Novak Djokovic became a byword in early 2022. The Serbian man stumbled into a problem when he was about to take part in the 2022 Australian Open Grand Slam. Djokovic had been detained by Australian immigration.
Djokovic had problems when he entered Australia because he had not been vaccinated against Covid-19. Djokovic dared to fly to Australia even though he had not been vaccinated because he had been exposed to Covid-19 and had been declared cured since December 2021.
Novak Djokovic arrived in Australia on Wednesday (5/1/2022). The world number one claimed to have received a medical exemption permit from the Tennis Australia tournament organizer, and was followed up by the Australian Department of Home Affairs. This exception allows him to enter Australia even though he has not been vaccinated.
The man nicknamed the Joker has submitted ownership of the Australian Travel Declaration document to the Australian Border Force. But Djokovic was still barred from entering Australia by the country's border forces on Wednesday (5/1/2022).
Even Djokovic had to undergo immigration detention in Melbourne for four days before undergoing trial on Monday (10/1/2022).
An Australian federal court judge later ruled that Djokovic had not violated immigration rules. Djokovic was allowed to continue his journey in Australia.
Judge Anthony Kelly has overturned the Australian Government's decision to cancel Djokovic's visa and ordered the Serbian tennis star to be released within 30 minutes of the decision.
However, the problem does not seem to have ended here. According to a CNN report, there is still the possibility of Djokovic being deported from Australia. Australia's Immigration Minister Alex Hawke is said to be "monitoring the situation as it evolves".
Alex Hawke apparently has the personal power to cancel the Serbian star's visa despite his successful court case.
Novak Djokovic Potentially Missing ATP Cup Tournament
MDP Live - Serbian Novak Djokovic is certain to miss the ATP Cup tournament held before the 2022 Australian Open, where Djokovic's participation is still in doubt.
The world number one's participation in the 2022 Australian Open remains uncertain as he refuses to disclose whether he has been vaccinated for privacy reasons, Djokovic's team told Serbian newspaper Blic.
"99 per cent Novak will not go to the ATP Cup. He is training here (in Belgrade), but he has decided to skip the tournament," said one member of the team who did not want to be named, as quoted by AFP.
The ATP Cup in Sydney is a team tennis championship which is the opening event for the Australian Open as well as starting the new season of the men's tennis tournament.
The Australian Open, which kicks off on January 17, could be a chance for Djokovic to score a record 21 Grand Slam titles.
However, based on Australian government policy, everyone who wants to enter the country must have been vaccinated against COVID-19.
Meanwhile, the 34-year-old tennis player had previously expressed his rejection of the vaccine.
Djokovic's father, Srdjan, said last November that his son might not appear at the Australian Open and accused organizers of "blackmail" over mandatory vaccinations.
Organizers believe Nadal will attend Australian Open, Djokovic not sure
MDP Live - Australian Open chief organizer Craig Tiley is optimistic that Rafael Nadal will be at Melbourne Park for next month's Grand Slam despite testing positive for COVID-19, but he still doesn't believe Novak Djokovic will participate in the tournament.
Nadal tested positive for COVID-19 after playing in an exhibition tournament in Abu Dhabi last week and said he would make a decision about the Grand Slam tournament depending on his condition in the coming weeks.
"I'm sure Rafa will be here," Tiley said of the 20-time Grand Slam champion's arrival at Melbourne Park.
"Players who test positive will now complete a period of time until they are no longer contagious and they will be fine. If you are going to test positive and you want to play in the Australian Open, your time is now."
Tiley confirmed that all players and staff at the Australian Open would be vaccinated or subject to medical exemptions granted by an independent panel of experts.
That requirement has kept Djokovic, who has refused to disclose if he has been vaccinated for privacy reasons, from confirming whether he will claim his 21st Grand Slam title and 10th Australian Open crown next month.
Tiley said as far as he was concerned, no player had been granted a medical exemption, and Djokovic would reveal his reasons for coming to Australia.
"If Novak shows up at the Australian Open he will be vaccinated or he will get a medical exemption," Tiley said.
"Medically, he hasn't discussed it with anyone. I won't ask Novak that, it's none of my business.
"I would know that (he met) one of those conditions," he added.
Tiley said if the world number one was to play for Serbia at the ATP Cup in Sydney in the first week of January, then he would arrive with the first stage players next week.
"We want to have the best players here, I want Novak here," said Tiley.
"If he meets those requirements then great, if not, it's disappointing."
Roger Federer, winner of another 20 Grand Slam titles, and Serena Williams, who has won 23 Grand Slam titles, have already ruled themselves out of the tournament as they continue to recover from injury.
Tiley also announced that former US Open champion Sam Stosur and his Australian counterparts Daria Saville and Maddy Inglis have been awarded wildcards for the women's singles event in the January 17-30 tournament.