Durant hobbled off the court with 9:46 left in the second frame. The 7-foot forward aggravated his right lower leg injury after trying to dribble by Toronto Raptors forward Pascal Siakam.
Durant planted his right leg and immediately dropped the ball and began to limp. He eventually sat on the court as play resumed at the other end. As he laid on the floor, he appeared to reach for his Achilles tendon.
The Warriors' training staff helped Durant, who hadn't played since Game 5 of the Western Conference semifinals against the Houston Rockets, to the locker room. The team previously labeled Durant's injury as a right calf strain.
Durant recorded 11 points (3-of-5 shooting), two rebounds and a block in 12 minutes before leaving the game.
Golden State held a 52-43 lead with 5:20 left in the second quarter. The Raptors hold a 3-1 lead in the best-of-seven series.