Five-time champion opened his 2022 Italian Open campaign with a 6-3, 6-2 victory over Aslan Karatsev. He goes on to face Stan Wawrinka (SUI) on Thursday.
World no.1 beat fellow Serb Laslo Djere 2-6, 7-6 (6), 7-6 (4) in Belgrade on Wednesday to reach the quarter-finals at the Serbia Open. Next up for Novak is seventh seed and another young gun from Serbia, Miomir Kecmanovic.
The top seed battled past Frances Tiafoe 6-3, 6-7 (3), 7-6 (2), 6-3 in three hours and 30 minutes to reach the third round of the Australian Open.
World no.1 made a winning start to his Western & Southern Open title campaign on Monday when he overcame a spirited performance from qualifier Ricardas Berankis 7-6, 6-4 for a place in the third round. Novak next plays ATP #55, American Tennys Sandgren (H2H 2-0).
Novak continued his quest for the "Nole Slam”, following a 6-1, 6-4, 6-3 win over Switzerland's Henri Laaksonen. His next opponent will be Italian qualifier Salvatore Caruso (#147)