Come watch @martinanavratilova and artist @kralik.juraj create art with tennis balls on a canvas. This original concept is being taken to new heights at the #USOpen. Our Art Grand Slam event will take place Sep 5 on court 16 from 2-4pm. The painting will be auctioned off and 50% of the proceeds will go to the #USTAFoundation. Send 🎨 if you can’t wait to see this come to life. __ #JuroKralik #martinanavratilova #usopen #art #artnyc #artistsoninstagram #tennislife