The Johnny Manziel rookie trading card will be released in late May, as the former Heisman Trophy and soon-to-be NFL rookie has signed with Panini America for a memorabilia and autograph deal. The company's line of trading cards, Score, will include some Manziel rookie cards that have been autographed by the projected first-round draft pick. According to sportscollectorsdaily.com, Manziel has already autographed jerseys, helmets, photos and footballs for the company that are now available online.