In addition to Season 5 of Team Affinity, SDS on November 19 released the biggest major collection for MLB The Show 21 yet. A 99 OVR Milestone Series card, featuring legendary Reds and Mariners outfielder Ken Griffey Jr. is available. But if you want to add "The Kid" to your collection, we hope you have doing a good job collecting cards. Here's what you need for Griffey. Screenshot by Gamepur To complete the Ken Griffey Jr. collection in full and get the 99 OVR card, you will need 16 vouchers. This is one more voucher than what was needed for Mookie Betts and Clayton Kershaw. 17 vouchers are available, so you can skip one of the collections if you wish. Two of the vouchers are player items: the 99 OVR Jackie Robinson (need all 42 cards of the Series 42 collection) and the 99 OVR Shohei Ohtani (need 46 cards from the \u201921 All-Star & Home Run Derby Collection). You can skip one of these, but if you want to acquire the Milestone Griffey, at least one will have to be completed. In addition to those players, you will need to obtain the remaining vouchers by doing the following: Collect 60 Postseason series cardsCollect 50 Veteran series cardsCollect 60 All-Star series cardsCollect 35 Breakout series cardsCollect 50 Rookie series cardsCollect 30 Future Stars series cardsCollect 60 Monthly Awards series cardsCollect 125 Topps Now series cardsCollect 40 Signature series cardsCollect 40 Awards series cardsCollect 22 Prime series cardsCollect 40 Prospect series cardsCollect 30 2nd Half series cardsCollect 60 Milestone series cardsCollection 45 Finest series cards We should note that there is a chain of rewards for this collection. Four vouchers will yield a Diamond Socks item, while six while give you a Griffey Jr. bat. Eight vouchers will yield a 99 OVR card: Milestone Jimmie Foxx. Screenshot by Gamepur Players can acquire Series cards through packs, programs, and through Events, Battle Royale, and Ranked Seasons.