Watch: Shumpert rocks rim with raging reverse dunk

Iman Shumpert is riled up.

After LeBron James picked up his fourth foul - in just 1.5 quarters of play - Shump responded by taking his frustration out on the rim the next trip up the floor.

The Cleveland Cavaliers shooting guard drove baseline and threw down a vicious reverse slam to bring the home team within 10 points of the Boston Celtics in Game 4 of the East Finals.