Home favourite and top seed Alexander Zverev would definitely want to forget about Wednesday as he fell to a shocking defeat against Norway's Holger Rune.
The match of the day was undoubtedly played between Alex Molcan and Norbert Gombos with the scoreline reading 6-1, 3-6, 7-6 (9-7).
At the 2022 Serbian Open, Djokovic came back from a set down against seventh seed Miomir Kecmanovic to win the second-round match 4-6, 6-3, 6-3.
Early in the decider, the 20th seed got his first break of the match on his eighth chance, then took the lead and cruised to victory.
The World No.1 has been drawn against his Serbian compatriot Miomir Kecmanović for the first round.