Wizards' Beal leaves game in 1st quarter with ankle sprain
The Wizards said he would not return.
Beal was driving to the basket on a fast break when he he slipped and fell in the lane, ending up underneath the basket.
He was able to get to his feet and walked unaided to the locker room.
Beal scored five of Washington's 20 first-quarter points.
The Wizards' shooting guard has already missed 18 games this season.