J.R. Smith throws down a monster dunk over Celtics

The 2013 NBA Playoffs got started with a bang on Saturday, when J.R. Smith found an easy path to the basket to throw down a huge dunk. The New York Knicks guard, a Sixth Man of the Year candidate, took a pass from Iman Shumpert on the left wing and shook off several Boston Celtics defenders before driving the for an uncontested dunk.