Nadal, 33, won his 18th Grand Slam title at the French Open yesterday.
It puts the Spaniard three ahead of Djokovic’s tally and two behind Federer’s all-time record.
The trio are battling it out in a bid to go down as the greatest tennis player of all-time.
And Roig thinks Federer and Djokovic may retire before Nadal because of their family lifestyle, which hands the advantage to the world No 2.
“This title is going to give wings to get more things,” Roig said after Nadal won the French Open.
“The titles feed the desire to win.
“In Grand Slams Federer is the best player in history and he is 37 years old and has four children.
“To see if he leaves and dedicates himself to them, he has already done everything he had to do.
“Djokovic has two sons, let’s see if he does the same. Nadal, Federer and Djokovic do not seek to be the number one in the moment, but history.”
Roig believes Nadal can carry him momentum into Wimbledon to halve his deficit to Federer.
“At the end of the game I told Rafa, ‘how good you are b*****d!’” he added.
“The day he lost with Thiem in Barcelona he said in the locker room, ‘this guy is not better than me’.
“Rafa can win Wimbledon this year.”
Meanwhile, Nadal claims to not be too focussed on catching Federer’s record.
“At the end of my career, I am able to win a couple of more Grand Slams and be closer to Roger, will be unbelievable. If not, for me, still unbelievable, no?” he said.
“And today, the last thing that I thought before you ask me that is about this thing. For me, Roland Garros, feel myself enjoying again on court. That’s the main thing, no?
“It’s a motivation, but it’s not my obsession. If you ask me whether I would like it, of course.”