Djokovic required surgery on an elbow injury earlier this year which shattered his serving technique and confidence.
The Serbian suffered early defeats at the Australian Open and French Open as he struggled to regain his form.
But at Wimbledon Djokovic was able to put his woes behind him as he beat Rafael Nadal in an epic semi-final before winning his 13th Grand Slam title.
Major tournament No 14 then followed at the US Open and now Djokovic is targeting the year-end world No 1 ranking.
However, seven-time Grand Slam winner Wilander does not believe Djokovic’s return to the top is given as much credit as it should.
“Novak’s mentality has gone from not being very good to being unbelievably good, especially in big matches,” Wilander told Sports Illustrated Podcast.
“I think that this is a story that hasn’t been properly told and I’m curious, given the freedom you guys have on your broadcast, how are you handling ‘The return of Novak Djokovic and the mysterious sabbatical he went on’.”
Wilander then delved into the details as to why Djokovic’s comeback has been so impressive.
“With Novak, I think he’s more human in the way that he’s showing disappointment and satisfaction on a tennis court, and that’s way more [normal],” he added.
“If you look back at what great champions have been like in the past with maybe the exception of Jimmy Connors. We don’t really talk about them as being in a slump.
“So Djokovic’s slump was very short, obviously, the elbow surgery was the big reason for it.
“I think the conflict of interests off the court when you have two kids and a wife then you have to have new values.
“And I think the way we’ve covered him is like he’s come so far.
“Ten years ago when he came out and he won the Australian open, he was fragile, emotionally.
“The way he has changed that and became a complete warrior, I think that to me is a bigger change than Roger Federer’s backhand, I really do.”