Jake Arrieta 2007 Just Minors Rookie has been hand-signed by TCU Horned Frogs fan favorite, Jake Arrieta and has been fully certified by Seller. The hard plastic encapsulation protects the card for the long haul. Jake Arrieta signed and authenticated trading cards are popular sellers for fans the NCAA and TCU Horned Frogs. This item ships out same day. Backed by Sports Collectibles 100% Money Back Guarantee.