Watch: Frustrated Serge Ibaka delivers hard blow to LeBron James
Fighting for positioning, James and Ibaka got a bit tangled up. James however, fell to the court after Ibaka grabbed his jersey and gave him a hard shoulder.
After review, a common foul was called on the play so it was really all ado about nothing. But the play does give a glimpse at how frustrated the Cavs are making the Raptors feel.