Thunder star Kevin Durant suffered what The Oklahoman has labeled a severely sprained right ankle against Dallas on Friday night, and it is unknown how long the dynamic scorer will be on the sidelines.

Durant used crutches and wore a protective boot on his right foot when leaving American Airlines Center. Team officials list him as day-to-day, but the injury was severe enough that team officials took an X-ray, which was negative.

"Kevin is a tough guy,? said teammate Jeff Green. "Hopefully, he doesn?t rush back too soon. We have some great trainers to help him get back quickly. We?ve just got to make up for him (being out).?

"I have no clue at this point (how long he?ll be out),? said Oklahoma City coach Scott Brooks.