Tre Jones headed to the locker room after suffering a shoulder injury vs. Syracuse on Monday.
Duke starting point guard Tre Jones has suffered an AC joint separation and is out indefinitely, per release, according to CBS Sports' Jon Rothstein.
Jones dove for a loose ball and collided with Syracuse guard Frank Howard. Teammates surrounded the freshman as he remained on the floor in pain prior to departing with 14 minutes left in the opening half.
"He was in a lot of pain," Duke coach Mike Kryzyewski told reporters following the game. "He's the toughest kid and right away, he said he thought his collarbone was broken."
Jones entered Monday's contest leading Duke in assists, averaging 5.9 per game. The Blue Devils also played without fellow star freshman Cam Reddish (illness), who is the school's third-leading scorer.