Irving, who has struggled with injuries throughout the playoffs, will undergo season-ending surgery to repair a fractured kneecap, which he sustained during Game 1 of the NBA Finals against the Golden State Warriors on Thursday.
The 23-year-old sustained the injury when he was driving to the basket with two minutes left in the Cavaliers' 108-100 overtime loss to the Warriors. Irving scored 23 points, grabbed seven rebounds, dished out six assists and also recorded four steals and two blocks in Game 1.
Initial tests done by the Cavaliers' medical staff revealed no damage to the ACL or MCL, but an MRI scan on Friday did show a fracture to Irving's left kneecap.
Irving will undergo surgery in the coming days and his operation will be conducted by head team physician Dr. Richard Parker.
Irving is expected to be out of action for approximately three to four months after the surgery.
The point guard posted the news on his Instagram page, along with a message that said: "I want to thank everyone for the well wishes. Saddened by the way I had to go out but it doesn't take away from being a part of a special playoff run with my brothers. Truly means a lot for all the support and love.
"I gave it everything I had and have no regrets. I love this game no matter what and I'll be back soon. To my brothers: You already know what the deal is."
Irving averaged 19 points, 3.6 rebounds, 3.8 assists and 1.3 steals per game during the postseason.