An official St. Louis Rams Numerical Roster from Rams 2010 Training Camp in Earth City, MO on August 17, 2010. Bradford's first pre-season game and pro debut was on August 14, 2010./This was authenticated by JSA on 4/7/2011. The seller I bought this from attended Summer Training Camp and got the following players to sign the Roster on 8/17/2010: Sam Bradford # 8 Chris Chamberlain # 57 Cardia Jackson # 51 Marty Gilyard # 81 Keith Toston # 38 This is a rookie auto of Sam during Training Camp. I purchased this on January 12, 2011.