Cavs' Perkins, Celtics' Crowder get into it after dirty screen

The Boston Celtics and Cleveland Cavaliers have played a very physical first-round series, but the action didn't get out of hand until the second quarter of Game 4 on Sunday.

With 1:44 remaining in the first half, Kendrick Perkins went to set a screen for LeBron James and decked Celtics guard Jae Crowder to the floor.

Crowder got up in Perkins' face, and the Cavs center took a swing at Crowder when the referee was in between the two players.

Perkins and Crowder were both given technical fouls. Perk also picked up a flagrant 1 foul.

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