Nadal’s last match saw him lose to Roger Federer at Wimbledon in an enthralling semi-final.
After the match, the Spaniard gave no clues about when he would next play after struggling with knee injuries on hard courts in recent years.
But Nadal has been practising at his academy in Manacor with coach Carlos Moya in recent days and appeared to be hitting the ball sweetly.
And at a press conference today, Nadal said his fitness levels are in an ideal place heading into the summer hard court season.
“I think this year I’m going with good fitness, preparation and I feel strong,” he said.
“I’ll soon travel to Montreal as I want to spend some days there to finish my preparation.”
Nadal is expected in Canada before Friday when he is due to practise on Centre Court.
The draw is also set to be made on the same day and Nadal will be the top seed as he looks to defend his title from 12 months ago.
Last year, Nadal beat Stefanos Tsitsipas in the final to win the tournament for the fourth time.
Novak Djokovic and Roger Federer will be absent from Montreal after withdrawing.
And it means Dominic Thiem, Alexander Zverev, Stefanos Tsitsipas and Kei Nishikori join Nadal as the top five seeds.
Meanwhile, rising stars Felix Auger-Aliassime and Denis Shapovalov are set to receive warm welcomes at their home event.
“We are looking forward to kicking off the 2019 edition of our tournament, as we also get ready to celebrate the 40th anniversary of the Montreal event,” tournament director Eugene Lapierre said.
“During the past few years, we have seen some exceptional tennis and a number of memorable matches between tour veterans and the next generation of talent.
“This year, we also have the opportunity to see many of our Canadian players take part in their home tournament.
“We are ready for a great week of tennis.”
