A Dallas Mavericks Nike Swingman Royal Blue NBA Basketball Jersey hand signed by Dirk Nowitzki. The item and signature are in excellent condition - Dirk has had an incredible career. Some of his highlights have been; he is an NBA Finals MVP, NBA Finals Champion and 14x NBA All-Star. AUTHENTICATION: The item is accompanied by a Panini Authentic Certificate of Authenticity - Panini Authentic Serial Numbered and Databased hologram