Russell Westbrook left the Oklahoma City Thunder's match with the Toronto Raptors in the third quarter with a knee injury on Friday night.
With 7:37 left in the third quarter, Westbrook appeared to injure his knee in a collision with Toronto's Kyle Lowry on a pump fake near the sideline.
After initially colliding with Lowry, Westbrook immediately signalled a time-out and hobbled to the bench before eventually leaving the court with help from Center Hasheem Thabeet.
Westbrook scored 15 points before leaving the game and has averaged 21.4 points, 7.8 rebounds and 5.8 assists in 36 games this season.
After undergoing surgery and returning to action in February, Westbrook has been on a minutes restriction in order to help his rehabilitation.
Westbrook also missed the Thunders win over the Cleveland Cavaliers on Thursday as they tried to rest him and his injured knee.
There has been no announcement yet from the Thunder about any treatment or a suggested return date for Westbrook.