Spalding basketball signed by the 2012-2013 new york knicks. this ball has 13 signatures from the 2012-2013 new york knicks. the ball is signed by the following players: (all 13 signatures have been authenticated by psa/dna) 13 signatures jason kiddcarmelo anthonyronnie brewermarcus cambytyson chandlerchris copelandraymond feltonsteve novakpablo prigionij.r. smithkurt thomasjames whitemike woodson all 13 autographs on this basketball were authenticated by a team of experts at psa/dna and come with a letter of authenticity so you can rest assured you are purchasing the real deal. don't miss your opportunity to own this one-of-a-kind basketball autographed by the 2012-2013 new york knicks team. please note: this basketball has some damage on it. please see pictures for damage.