Stephen Curry will be out "indefinitely" after suffering sprained ligament damage to his left foot, according to reports.

The Golden State Warriors star sustained the injury in Wednesday's 110-88 defeat to the Boston Celtics, with Curry leaving the court in the second quarter after contesting a loose ball with guard Marcus Smart.

However, Shams Charania of The Athletic claims the 34-year-old has avoided a "fracture or major damage".

Curry scored 47 points in his previous game against the Washington Wizards on Monday, and has averaged 25.5 points per game this season for the Warriors.

He broke Ray Allen's record for most career three-pointers in December, though this season his percentage from beyond the arc sits at 38.0, slightly down on his career average of 42.8.

Warriors head coach Steve Kerr criticised Smart for "dangerous play" in the incident, and the duo exchanged words on the sidelines shortly after.

"I thought it was a dangerous play," Kerr told reporters. "I thought Marcus dove into Steph, and that's what I was upset about.

"I've got a lot of respect for Marcus. He's a hell of a player, a gamer, a competitor. I coached him in the World Cup a few summers ago. We talked after the game and we're good. But I thought it was a dangerous play."

Smart defended himself from Kerr's claims, stating that Curry's injury was "unfortunate" and that he was "not a dirty player".

"I saw the ball, I dove for the ball, trying to make a play. Unfortunately that occurred," Smart said.

"I'm sure I'm going to get called dirty. But I know who I am. I play very hard and I leave everything on the court. My team-mates, my colleagues, they know I'm not a dirty player."