2023 Topps Series 1 MLB Baseball Blaster Box Trading Cards | Look for Exclusive Royal Blue Parallels

2023 Topps Series 1 MLB Baseball Blaster Box Trading Cards. Celebrate the unofficial beginning of the 2023 baseball season when Topps Baseball Series 1 hits shelves in February 2023. Collectors will find the league’s current stars, greats from the past, and rising rookies featured on base cards, inserts, and autograph and relic cards.