Murray lost to Fabio Fognini at the Italian Open this week and also has defeats to Vasek Pospisil, Albert Ramos-Vinolas and Borna Coric on his record in 2017.
But Djokovic, who lost his world No1 spot to the Brit in 2016, will be surprised if he turns his form around come the beginning of the French Open on May 28.
“Some top players come out and play their best when it’s most needed, which is Grand Slams,” Djokovic said.
“I wouldn’t be surprised to see [Stan] Wawrinka or Murray playing at a really high level in Paris, because I guess they are aiming to do that.
“And it’s best-of-five and played every second day, which allows you to have more time to rest and recover, whereas in these tournaments.
“You play day after day after day, and it’s very intense for the body and for the mind and so forth.”
Murray will have Ivan Lendl return to his box for the French Open and the eight-time major champion is expected to remain with the world No1 through the summer.
However, the player knows that he has to figure out for himself exactly what is going wrong.
“I’m just not playing good tennis and I need to try and work out how to turn that around. I believe I will.
“And I need ideally to do it quickly, because there are some pretty important tournaments coming up.
“I know a lot of people think I have got no chance of doing anything at the French after the last couple of weeks, but I do think I can.
“It’s certainly not going to be easy. I’m going to have to work hard these next 10 days, then really work my way into the tournament.”
Source : EXPRESS