Add to your MLB collection with this Jordan Walker St. Louis Cardinals 2023 Topps Now 20-Year-Old Get First Hit On Opening Day #7 CGC Authenticated 9.5 Rookie Card. Graded 9.5 and authenticated, this card is the perfect way to celebrate the career and accomplishments of the St. Louis Cardinals star. Along with an eye-catching design, it's encapsulated in a tamper-evident case for a lasting display of your Jordan Walker fandom.