Djokovic was among several players to test positive after last year's event, which was held in front of thousands of fans with no social distancing.
Year in Review 2020: Robots cheering teams in empty stadiums to PV Sindhu's shock 'retirement', 10 bizarre sports stories
There were lesser matches and tournaments in 2020 as a result of the COVID-19 pandemic, but the bizarre content was still very high. In fact, a few incidents were so strange they could have been a result of the pandemic. Here's a look at some of the strangest sporting moments from 2020.
Djokovic, who has topped the world rankings for 282 weeks, could overtake Federer's record of 310 weeks at number one by March and said that is a major goal as well.
Novak Djokovic, Coric, Grigor Dimitrov and Viktor Troicki all tested positive during the Adria Tour event in Serbia and Croatia, which was later cancelled.
Novak Djokovic accuses critics of 'witch-hunt' after Adria Tour, undecided on participating at US Open
Djokovic, who tested positive for COVID-19 after the Adria Tour’s second leg in Croatia, pulled no punches in slamming his peers and pundits who said he was irresponsible to stage the event amid the pandemic.
Kyrgios has repeatedly criticised organisers and players at the abandoned event in the Balkans, where Novak Djokovic, Grigor Dimitrov, Borna Coric and Viktor Troicki all tested positive for the novel coronavirus
French Open organisers to be 'really careful, really cautious' to avoid meeting fate of Novak Djokovic’s Adria Tour
The French Open will allow up to 60 percent of the usual capacity inside the Roland Garros grounds when the rescheduled claycourt tournament starts on 27 September and organisers said there was no chance of them repeating the mistakes of the Adria Tour.
Novak Djokovic's Adria Tour event lacked bit of common sense, says former ATP players' council head Vijay Amritraj
Djokovic has apologised and admitted it was probably “too soon” to run the event, which was played in front of packed stands in Belgrade.
Manchester United's Nemanja Matic defends Novak Djokovic after COVID-19 positives in Adria Tour exhibition tournament
Djokovic was criticised for hosting the tennis tournament amid a pandemic after his coach Goran Ivanisevic and players Grigor Dimitrov, Borna Coric and Viktor Troicki returned positive tests over the two legs in Serbia and Croatia.
'How selfish can you be?': Nick Kyrgios blasts Alexander Zverev for partying and self-isolation breach
Alexander Zverev had stated he would enter self-isolation of 14 days after the Adria Tour debacle but was seen partying in Monte Carlo.
'I feel well and don’t have symptoms': Tennis star Borna Coric says after contracting COVID-19 infection
Coric was among several other players who tested positive for COVID-19 after playing in Novak Djokovic’s controversial Adria Tour tournament.
World No 3 Dominic Thiem apologises for taking part in Novak Djokovic's Adria Tour exhibition series
Thiem, a two-time French Open finalist who lost to Djokovic in the Australian Open final this year, said he has been tested five times in the last 10 days but is negative for the virus.
'Protocols are in place for reason', Wimbledon chief expresses disappointment over botched Adria Tour
Wimbledon chief said, 'The images were disappointing and I think that ... what needs to come out of it is everybody involved — not just players, but administrators, organisers, entourages — understands that the protocols, rules and regulations are in place for a reason.'
Grand Slams hope to avoid meeting fate of Novak Djokovic's Adria Tour by adhering to strict COVID-19 protocols
Hindsight offers clarity, but organisers of the world’s biggest tournaments say they will not make the same mistakes as they reopen the sport and seek to keep the players safe.
Novak Djokovic's parents hit back at critics after Serbian star tests positive for COVID-19, blame Grigor Dimitrov for spread
Novak Djokovic’s parents defended their son on Wednesday and blamed another tennis player for spreading the coronavirus at a series of exhibition matches hosted by the top-ranked player.
Murray said he hoped the players and their family members who tested positive recovered soon and added that the tournament should not have gone ahead in hindsight.
Novak Djokovic goes from aiding lower ranked players to endangering countless in miserably quick fall as role model
Djokovic is not being berated for failing to live up to the lofty expectations that come with the territory of being an all-time great; he is being slammed because he behaved like a stupid, selfish jerk.
'Reckless and disappointing': Tennis fraternity slams Novak Djokovic after top-ranked player returns positive test for COVID-19
World number one Novak Djokovic tested positive for COVID-19 on Tuesday, days after he hosted a number of players in the Adria Tour exhibition tournament in the Balkan region.
Djokovic tested positive on Tuesday after taking part in a tennis exhibition series he organised in Serbia and Croatia, becoming the fourth player to test positive for COVID-19.
World number one Novak Djokovic should put his hand up and accept responsibility after Grigor Dimitrov and Borna Coric tested positive for COVID-19 while participating in his Adria Tour exhibition tournament, Briton Dan Evans said.