ESPN
The bad blood between the Boston Celtics and the Washington Wizards finally boiled over in the second quarter of Game 2 when Kelly Oubre Jr. took exception to a hard pick and flattened Kelly Olynyk after the whistle.
Olynyk was called for a foul on the screen and immediately ran to the official to protest. Oubre, feeling Olynyk's arms got to high immediately jumped up, sprinted towards Olynyk, and laid him out with a forearm.
Here is the play, via ESPN:
Here is the replay: