Sunday was just not Jae Crowder's day. The Cleveland Cavaliers completed a four-game sweep over the Boston Celtics and Crowder took most of the beating. First, he got hit in the face by the breathing illegal screen known as Kendrick Perkins at the end of the first half. Cleveland Cavaliers shooting guard J.R. Smith decided the Boston Celtics forward hadn't had enough. He delivered a closed fist punch to Crowder's face on a rebound attempt.