Novak Djokovic officially withdrew from the upcoming Miami Open on Friday (March 17) after his request to enter the United States via a special exemption from the country's vaccine mandate was denied.Djokovic's unvaccinated status also saw him withdraw from the Indian Wells Masters earlier this month, as the US still requires foreigners entering the country to be vaccinated against COVID-19.With the Serb's withdrawal being confirmed, Colombian player Daniel Elahi Galan has entered the main draw.This will be the fifth straight year that Djokovic will miss the Miami Open. With the absence of one of the main attractions on the tour, fans have taken to social media to vent their disapproval of the US government's travel policies.One fan opined that the authorities are "shooting themselves in the foot" with their "irrational" policy, and claimed that Djokovic's absence will result in a loss of viewership for the tournament."No disrespect to Galán, but will he attract close to the same viewership and interest as Djokovic? This is what makes the current policy positively irrational. They are shooting themselves in the foot," the user wrote.In my refocus era@sangeetapremiNo disrespect to Galán, but will he attract close to the same viewership and interest as Djokovic? This is what makes the current policy positively irrational. They are shooting themselves in the foot. Shame to see Korda out, too. twitter.com/EntryLists/sta…Entry List Updates@EntryListsMiami update:OUT: Djokovic, KordaIN: Galan, KudlaNext: Cecchinato837Miami update:OUT: Djokovic, KordaIN: Galan, KudlaNext: CecchinatoNo disrespect to Galán, but will he attract close to the same viewership and interest as Djokovic? This is what makes the current policy positively irrational. They are shooting themselves in the foot. Shame to see Korda out, too. twitter.com/EntryLists/sta…Another user took a dig at President Joe Biden, blaming his "tyrannical rule on airline passengers" for the 22-time Grand Slam champion's absence."Djokovic is missing the Miami Open over Joe Biden's tyrannical rule on airline passengers. He could walk or boat w/o issue. Silly, isn't it?," read their tweet.Sandy 〽️@RightGlockMom@Reuters Actually, Djokovic isn't missing the Miami Open over his vaccine status. Djokovic is missing the Miami Open over Joe Biden's tyrannical rule on airline passengers. He could walk or boat w/o issue. Silly, isn't it?8@Reuters Actually, Djokovic isn't missing the Miami Open over his vaccine status. Djokovic is missing the Miami Open over Joe Biden's tyrannical rule on airline passengers. He could walk or boat w/o issue. Silly, isn't it?Here are a few other fan reactions:Shannon@Punkrockprolife@Reuters We're still playing that ridiculous charade where we pretend the vaccine was 'safe and effective'?? 🙄8@Reuters We're still playing that ridiculous charade where we pretend the vaccine was 'safe and effective'?? 🙄silvia73@silvia75778@Tennis @MilicaM84932667 @JRBlake @MiamiOpen Absolute discrimination. Biden must be arrested , w Putin !!! Hope in the karma, he is quite old6@Tennis @MilicaM84932667 @JRBlake @MiamiOpen Absolute discrimination. Biden must be arrested , w Putin !!! Hope in the karma, he is quite oldTalha@TalhaIrf@Reuters That's pathetic. Covid is over. Please get a life2@Reuters That's pathetic. Covid is over. Please get a lifeLaura Messina👑 🌈 🐺@LauMes77Shameful chapter ofhistory keeps bein written w this US adm at the core of it. It is what it is @djokernole is a born leader meant 2be smthng way bigger than aplayer thats why evrything he does catalyzes a reaction.This 1 from @POTUS is driven by sheer spite=political poverty twitter.com/Reuters/status…Reuters@ReutersDjokovic to miss Miami Open over vaccine status, tournament director says reut.rs/3LxI8uX124Djokovic to miss Miami Open over vaccine status, tournament director says reut.rs/3LxI8uX https://t.co/hHqt5suQXUShameful chapter of🎾history keeps bein written w this US adm at the core of it. It is what it is @djokernole is a born leader meant 2be smthng way bigger than a🎾player thats why evrything he does catalyzes a reaction.This 1 from @POTUS is driven by sheer spite=political poverty twitter.com/Reuters/status…Michele Hughes@mdhughes29@Reuters This is ridiculous! He needs to be allowed into the USA!1@Reuters This is ridiculous! He needs to be allowed into the USA!Hearn Law Firm@PhilipHearn5@Reuters Because everything changes on May 11, correct? That 7 weeks is going to make all the difference in the world. 🙄@Reuters Because everything changes on May 11, correct? That 7 weeks is going to make all the difference in the world. 🙄Edwin Rodríguez@cngpr1This is the most spit I have seen, doing the test should be enough, when we all know that many audience attendees are not vaccinated. Shame on the government. twitter.com/reuters/status…Reuters@ReutersDjokovic to miss Miami Open over vaccine status, tournament director says reut.rs/42zAgiH6110Djokovic to miss Miami Open over vaccine status, tournament director says reut.rs/42zAgiH https://t.co/i5OeJWNAigThis is the most spit I have seen, doing the test should be enough, when we all know that many audience attendees are not vaccinated. Shame on the government. twitter.com/reuters/status…Gustavo E Grossmann@gugrossmannIncredible.. do we ask vaccine record to the thousand of inmigrantes coming and trespassing the south border ?? I hope the tournament will be a desastrr twitter.com/reuters/status…Reuters@ReutersDjokovic to miss Miami Open over vaccine status, tournament director says reut.rs/3LxI8uX11124Djokovic to miss Miami Open over vaccine status, tournament director says reut.rs/3LxI8uX https://t.co/hHqt5suQXUIncredible.. do we ask vaccine record to the thousand of inmigrantes coming and trespassing the south border ?? I hope the tournament will be a desastrr twitter.com/reuters/status…"Tried everything to allow Novak Djokovic to enter with an exemption," says Miami Open tournament director2023 Dubai Tennis ChampionshipsMiami Open tournament director James Blake lamented Novak Djokovic's absence from the tournament and said that they "tried everything" to ensure he gets an exemption to enter the US."We tried everything to allow Novak Djokovic to enter with an exemption, but that didn't happen," Blake said in an interview with the Tennis Channel.Blake stated that they even tried to hold talks with the government on the matter, but their efforts eventually went in vain."It is obvious that we are one of the biggest tournaments and we would love to have all the best players in the world. We were trying to talk to the government, but that decision was not in our hands," he added.Djokovic was last seen in action at the Dubai Tennis Championships, where he lost to eventual champion Daniil Medvedev in the semifinals.