Lance Stephenson headbutts stanchion after massive dunk

Lance Stephenson threw down a big dunk during the Pacers’ NBA playoff game against the Cavaliers on Sunday.

The 27-year-old was so fired up after the play, he headbutted the stanchion behind the goal.

This series reignites the LeBron James vs. Stephenson matchup four years after the Pacers star blew in James' ear during the 2014 playoffs: