The Australian Open 2022 finalist became the 27th man to reach the top spot since computerized rankings began in 1973.
The Indo-Czech pair received a wild card for the tournament and will now take on Japan’s Shuko Aoyama and Aleksandra Krunic of Serbia in the quarterfinals
The World No.1 was recently denied a chance to defend his title at Australian Open 2020 due to his Covid-19 vaccine status.
Australian immigration minister Alex Hawke asserted that the government will stand by its measures to curb the pandemic.
The World No.1 has been drawn against his Serbian compatriot Miomir Kecmanović for the first round.
Djokovic stands one major championship win away from setting the men's record with 21 Grand Slam titles.
The treatment of Novak Djokovic ahead of the Australian Open has not gone down well with Serbians, who are fierce in their loyalty to the star.
Pablo Carreno Busta overcame Serbia’s Filip Krajinovic 6-3, 6-4 to book Spain’s place in the semi-finals at ATP Cup in Sydney.