The 2025 Bowman Chrome Marcelo Mayer It Came to the League Rookie #IT-10 trading card features the up-and-coming baseball player Marcelo Mayer from the Boston Red Sox. This original card, part of the 2025 Bowman Chrome set, is a chrome parallel variety made of card stock. It is a rookie insert card authenticated by Bowman, perfect for fans and collectors looking to add a piece of MLB history to their collection.