Klay Thompson left Game 6 of the Finals late in the third quarter after a hard foul from Danny Green. The team announced that Thompson underwent an MRI following his exit, which confirmed that the Warriors' star suffered a torn left ACL.
ESPN's Adrian Wojnarowski reports his rehab could go late into next season, extending as far as possibly February or March.
Thompson landed hard on his left knee and started heading toward the locker room instead of taking his free throws. But then, he was stopped on his walk back during a timeout and then connected on both attempts before coming out.
Thompson is the game's leading scorer with 30 points. He previously missed Game 3 of the series with a left hamstring injury.
The Warriors had an 88-86 lead on the Raptors going into the fourth quarter. The team announced Thompson would not return to the game shortly after the period started.
He left the arena on crutches shortly after it was announced he would not return.
Draymond Green said after the game, "He's a Warrior. No pun intended with that. But there's no other way to describe him. ... That's just who he is. That's why we love him."
In Game 5 of the series, the Warriors lost Kevin Durant to a ruptured Achilles.