Novak Djokovic and
Alexander Zverev have a really good relationship as they spent time off the court together as well on top of being good rivals on the court.
Djokovic and Zverev played some amazing matches against each other and one of the most painful defeats for Djokovic came against Zverev. It was at the Tokyo Olympics where Novak won the opening set easily after which he collapsed in totally incredible fashion. It wasn't something typical but Zverev did play a very good match.
For Zverev, Djokovic is somebody who has dominated the game for the past decade and he's pretty sure that the Serbian will break a few more records like the one of Graff that will be broken in a few days officially:
"Djokovic has completely dominated tennis in the last 12 years. There's a reason why he's been at the top consistently. He's the player with most weeks as #1 ever, male or female. I'm sure he's going to break more records. The ones left, maybe he'll break them."