MLB 2012 Retail Panini Prizm Baseball Cards USA Baseball inserts include USA Baseball Prizms, USA Baseball Gold Prizms and USA Baseball Signatures Prizms including the first-ever USA Baseball Autograph of Mike Trout Among the signers in the USA Baseball Signatures Prizms; Mike Trout, Buster Posey, Andrew McCutchen, Justin Verlander, Clayton Kershaw, Justin Upton and Austin Jackson among others Top Prospects Prizms and Top Prospects Gold Prizms include Manny Machado, Jurickson Profar, Dylan Bundy, Wil Myers, Zach Lee, Shelby Miller, Gerrit Cole and Mike Olt