Woods has missed the majority of the golfing year with a back injury, one that has derailed his career over the last few years.
However, the 41-year-old is set to return at the Hero World Challenge event, where he will be paired with Justin Thomas for the first two rounds.
And Nadal, who is currently the best player in tennis after a stellar year that will see him top the charts in January, expects Tiger Woods’ comeback to be a huge success.
However – only if the American has got the training he needs.
“If he is able to train what he wants to train, he will compete again,” Nadal said.
“I do not know how far because nobody can know, it remains to be seen.
“[But I hope he can] compete week after week, fight for important things.”
Woods has cut a far calmer and open figure since announcing his comeback.
But golf legend Brandel Shamblee thinks the player will never manage to scale the same heights of old.
“No is the short answer,” Chamblee told golf.com.
“If you do an internet search of the greatest sports comebacks from injury, you’ll get a litany of injuries.
“The one thing you will not get is a bad back followed by great athletic achievement.”
Chamblee has also seen nothing to suggest that Woods will return better than ever before.
“A bad back by a 41-year-old, four back surgeries in the last three or four years, followed by the emotional stress of the scandal and the controversies that have followed him around and likely some addictions, followed by the chipping…