VIDEO: J.R. Smith unties Shawn Marion’s shoe during game

That J.R. Smith is one tricky cat.

During the New York Knicks and Dallas Mavericks game, Smith untied Shawn Marion’s shoe when Dirk Nowitzki was taking free throws.

The best part of this whole thing is that Marion doesn’t go down to tie his shoe until after the next defensive series.

You’re a sly one, J.R.