Saturday night the Boston Celtics went to Ohio to face off against the Cleveland Cavaliers in Game 1 of the Eastern Conference semifinals. The Cavs came away with the victory, but one shocking thing happened Mo Williams dunked! After the game Cleveland coach, Mike Brown, was asked about the dunk. I’d say he was pretty much speechless. Check out the video below of the dunk and the post-game interview with the Cavs head coach. Hilarious!