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.
Novak Djokovic says he is still dealing with an elbow issue heading into this week's Srpska Open as the Serb looks to get his French Open preparations back on track following his early exit at the Monte Carlo Masters.
Fritz, 25, rose to his highest career ranking despite a surprise loss to Wu Yibing in the Dallas semi-finals.
Novak Djokovic reclaimed top spot in the ATP rankings released on Monday after winning his 22nd Grand Slam title at the Australian Open.
Novak Djokovic, who won a record-equalling 22nd Grand Slam title on Sunday, is driven on through controversy by his determination to be the greatest ever.
Novak Djokovic shrugged off controversy involving his father to reach a record-extending 10th Australian Open final with a 7-5 6-1 6-2 win over outgunned American Tommy Paul on Friday.
Facts and figures ahead of Friday's Australian Open men's semi-finals (x denotes seeding):
Novak Djokovic makes his eagerly anticipated return to the Australian Open on Tuesday and women's world number two Ons Jabeur will also launch her title bid.
Five top contenders for the men's title at the Australian Open, which starts on Monday:
Novak Djokovic said he felt "emotional" following a warm reception from fans upon his return to Melbourne Park for a practice match against Nick Kyrgios on Friday.
Australian Open spectators were warned on Wednesday that they risk being ejected if they target nine-time champion Novak Djokovic.
