That is the view of former British star Greg Rusedski.
Auger-Aliassime caused the biggest upset of Indian Wells so far when he beat world number 10 Stefanos Tsitsipas 6-4 6-2 to reach the third round.
Tsitsipas has been one of the form players on the tour after reaching the semis at the Australian Open, winning in Marseille and finishing runner-up in Dubai last week to Roger Federer.
But the talented Greek came up against another in-form star in Auger-Aliassime, who reached his first ATP Tour final in the Rio de Janeiro, Brazil last month.
And in the opening match on day three of Indian Wells, Tsitsipas had no answer to Auger-Aliassime’s quality and was dispatched in just 77 minutes on Stadium 1.
Speaking on Amazon Prime, Rusedski was in awe of the teenage Canadian player and he favourably compared the 18-year-old to Nadal.
Rusedski said: “By the end of this year, this guy could possibly be top 10 (in the world), if not the following year.
“That’s how good this guy is. You look at the rotation he puts on the forehand, it’s a little bit like Rafael Nadal. But a right-handed version.
“A great attitude, great composure and also a great team around him is also a key ingredient.
“He’s such a specimen and he moves incredibly well. Having spoken to a lot of the coaches in Tennis Canada, they all said to me this guy is the best athlete we’ve ever seen on a tennis court.
“That’s a big thing to say.”
After the match, Auger-Aliassime was delighted with his own performance and admitted he didn’t expect such a display.
“I wasn’t sure what to expect. I definitely didn’t expect to win that way,” Auger-Aliassime said on Tennis Channel.
“But I believed in myself, was able to impose my game like I did in the first round, and that’s it.”
Auger-Aliassime will play either Roberto Bautista Agut or Yoshihito Nishioka in the next round.