The 30-year-old Spaniard has been out of the Grand Slam limelight since his last title success at Roland Garros in 2014, as injuries sidetracked his glorious career.
But victory over Bulgaria's 15th seed Dimitrov, once dubbed 'Baby Fed', in tomorrow's second men's semi-final will put Nadal one win away from a 15th major title.
However, Dimitrov is enjoying some of the form of his life coming into what will be his first major semi-final since Wimbledon in 2014.
After his upset of defending champion Andy Murray at Wimbledon in 2014 he lost to Novak Djokovic in the semis, reaching number eight in the rankings. But after that, his career failed to take off.
Now under Murray's former coach Daniel Vallverdu, Dimitrov is unbeaten in 2017, winning his fifth career title in Brisbane and now on a run of 10 matches without defeat.
While Federer has enthralled the tennis world with his comeback from an injury-blighted 2016, so too has Nadal's charge through the bottom half of the draw.
- 'Job isn't over yet' -
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Nadal has added Carlos Moya to his coaching team and since his first-round loss to Viktor Troicki in Shanghai in October he has worked hard to get his game into shape.
"It's good news, especially winning against difficult players: Monfils in quarter-finals, Zverev round of 16, and Raonic," Nadal said.
"All of them are top players. So that's very important for me because that means that I am competitive and playing well. I worked hard to try to make that happen."
"He's a player that has an unbelievable talent, unbelievable potential. He's started the season playing unbelievable," Nadal said of Dimitrov.
"It's going to be a very tough match for me. I hope for him, too. I have to play my best because he's playing with high confidence."
The 2009 winner is 7-1 in his matches with Dimitrov, including a four-set quarter-final win at the Australian Open three years ago.
Another salient statistic is that Nadal is 66-8 against players with one-handed backhands at Slams.
The last time the Bulgarian won 10 straight matches was back in 2014, when he took the title at Queen's and reached the last four at Wimbledon.
Disclaimer: No Business Standard Journalist was involved in creation of this content
