He is through to the last 32 in Paris for the 20th time, more than even 14-time champion Rafael Nadal managed.
Djokovic, who is eyeing his 100th tour-level title before the French Open starts on May 25, said no player would ever be bigger than tennis.
A victory at Miami would be a landmark 100th singles title for the 24-time Grand Slam champion.
Djokovic said on Thursday that there are some things in the lawsuit from the Professional Tennis Players' Association (PTPA) that he disagrees with and also expressed some discomfort with the language used.
The 24-time Grand Slam winner, who retired from his last four match at Melbourne Park in January due to the injury and lost his opener at the Qatar Open last month, also said he was reaping the rewards of his work with coach Andy Murray.
Djokovic's bid for a record-breaking 25th Grand Slam title at the Australian Open was ended when he was forced to retire injured after dropping the opening set against Alexander Zverev in the semi-finals.
For over two decades, the "Big Three" of Roger Federer, Rafael Nadal, and Novak Djokovic dominated the sport, pushing each other to unimaginable heights. Now, a new story begins.
Djokovic goes on to face Australian ninth seed Alex de Minaur for a place in the semi-finals.
Seven-time champion Djokovic comes up against Danish 15th seed Holger Rune, who has beaten him twice.
Tennis fans gave Novak Djokovic a raucous welcome during his first match in Australia in almost two years when he made a rare doubles appearance at the Adelaide International on Monday.
Novak Djokovic said he wants his biggest rivals to be by his side when he brings the curtain down on his career, much like Roger Federer's emotional goodbye to the game last week.
Novak Djokovic paid tribute to his long-time rival Roger Federer on Friday, hailing the "incredible moments and battles" the pair shared on court.
Rafael Nadal set up a blockbuster French Open quarter-final against world number one Novak Djokovic on Sunday when he defeated Felix Auger-Aliassime in a five-set fourth round epic.
Top seed Novak Djokovic described his straight-sets opening win over Gael Monfils in Madrid on Tuesday as his "best performance of the year" as he set up a showdown with Andy Murray.
Many athletes are putting a brave face on the coronavirus lockdown, converting garages and bedrooms into home gymnasiums and posting cheerful videos of themselves on social media keeping fit by "bench-pressing" their children.
Rafael Nadal booked his semi-final spot at the Mexico Open by battling past Yoshihito Nishioka in straight sets, while top seed Novak Djokovic suffered another stunning exit in a shaky start to 2017.
World number one Andy Murray insisted Sunday that Novak Djokovic will remain his biggest threat in 2017, as the pair prepare for a potential first clash of the season in Doha this week.
Novak Djokovic, well rested after not playing since Monday, resumes his US Open title defence against fiery Russian Mikhail Youzhny, a two-time semi-finalist in New York.
Novak Djokovic opens defence of his U.S. Open title with a laboured 6-3 5-7 6-2 6-1 win over Poland's Jerzy Janowicz that brings new concerns about the world number one's fitness.
