JR Smith untied Shawn Marion’s shoes in the free throw line (Video)

JR Smith apparently has a humorous habit of untying an opponent’s shoes in the free throw line, and Shawn Marion was his victim on Sunday.

Smith pulled off the trick upon entering the game late in the second quarter during the Knicks’ 92-80 win over the Mavs. When a fan on Twitter told Smith he saw the Knicks guard pull off the move against Dwight Howard, Smith added that this is something he does every game:

That’s easily the best defensive move Smith has shown all season.