“It’s just completely different conditions that we’re playing in, so it’s very hard to compare tennis, say, from 50 years ago to today.
“But I am extremely honored to definitely be part of the conversation.”
The Golden Slam is also a potential for Djokovic, but he’s now not sure whether he will travel to the Olympics.
“I’ll have to think about it,” he said. “Right now, as I said, my plan was always to go to Olympic Games. But right now I’m a little bit divided. It’s kind of 50/50 because of what I heard in the last couple days.”