"Everyone be careful, take care of yourself and quarantine," the Brooklyn Nets player told The Athletic on Tuesday.
NBA followers reacted to the jaw-dropping news on Twitter.
"I'm hurting deeply, but I'm OK," the star forward said of his devastating Game 5 injury.
The star forward, who had been out for a month with a calf strain, returned to play in the NBA Finals Game 5 and apparently hurt his Achilles.
"My only concern tonight is your well being," the Toronto rapper wrote on Instagram.
Toronto players defend hobbling Golden State star as fans jeer his injury in Game 5.
Klay Thompson and Kevin Durant got sweet revenge on the trash-talking, Raptors-loving rapper, who'd trolled the visitors in the previous game.
Kevin Durant, Paul George and Joel Embiid were among the players to fire back at fans' insulting messages in the "Jimmy Kimmel Live!" segment.
Kevin Durant was named Finals MVP for the second year in a row.
His mother sent her love on Twitter as well.