James Harden's rough play left an opponent bleeding.
The Houston Rockets point guard drew contact on a drive late in Friday's game in Beantown, and it appears momentum caused him to collide with Jonas Jerebko, who was bloodied after catching a Harden elbow to the face.
The Beard was assessed a flagrant-1 foul for the hit.
Following the Boston Celtics' 120-109 win, the team announced Jerebko would get four stitches.