BOSTON — The Celtics and Cleveland Cavaliers have played a very physical first-round series, but the action hadn’t gotten out of hand until the second quarter of Game 4.

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 appeared to poke at Crowder’s eye when the referee was between them.

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

It’s not the first time Perkins has received a technical foul involving Crowder. In February 2013, when Perkins was with the Oklahoma City Thunder and Crowder was playing for the Dallas Mavericks, Perkins picked up a technical for a verbal exchange with Crowder after the then-Mavericks guard scored on him.

Thumbnail photo via David Richard/USA TODAY Sports Images