Going back to June, when Antetokounmpo won most improved player at the 2017 NBA awards ceremony, KD took to his YouTube channel to congratulate the young player, saying "it's guaranteed" that the Bucks' star will be the NBA MVP someday.
More recently, in a video posted on Friday on his YouTube channel, KD gave Antetokounmpo another huge compliment.
In the video, KD takes questions from fans as part of a Q&A for readers of Fast Company, a magazine that will be featuring Durant on the cover of its next issue. One of the questions is, "Who are your favorite players in the NBA to watch?"
Durant's immediate response is "the Greek Freak" as the player he most enjoys watching.
He goes on to say that he thinks Antetokounmpo could one day become the "best ever" to play in the NBA.
"I like long, athletic guys," Durant said. "That's just who I am. The Greek Freak I think is a force, and I've never seen anything like him. And his ceiling is probably ... he could end up being the best player to ever play if he really wanted to. That's pretty scary to think about. But he's by far my favorite player to watch."
That's pretty high praise for any player to receive from a colleague, let alone from the reigning NBA Finals MVP.