As a junior at Missouri, Blaine Gabbert led Missouri to a 10-win season before announcing that he would forgo his senior season and enter the 2011 NFL Draft as one of the country’s top up-and-coming quarterback prospects. Private Signing 4/23/2011. Blaine Gabbert has hand signed this Official NFL New Duke Football. Photo of the Signing and Certificate of Authenticity from Athlon Sports.