Andrew Knizner is an American professional baseball catcher in the Arizona Diamondbacks organization. He has previously played in Major League Baseball (MLB) for the St. Louis Cardinals and Texas Rangers. Andrew Knizner has Hand Signed this St Louis Cardinals Nike MLB Blue Authentic Collection Team Issued Jersey. Brand new- Size 46. Knizner embroidered jersey front sig. Lou Brock 20 left sleeve patch.  Bold black full pristine signature on #7. Cardinals Club Authentication. Cardinals Care May 4, 2021 Signing. MLB Authenticated Certified Hologram # VS681196