MLB The Show 26

September is becoming an important month for Diamond Dynasty players in MLB The Show 26, and one of the biggest dates on the calendar is September 18. A new Legends & Flashbacks Collection is expected to arrive as part of the latest wave of Diamond Dynasty content, giving players another reason to revisit their binders, complete Series Collections and prepare as many Vouchers as possible. With fresh Diamond Dynasty content giving both returning and new players more to explore, those planning to jump into the game can also Buy MLB The Show 26 CD Keys through Z2U and get ready for the latest content. The September 18 Collection has already generated considerable discussion within the MLB The Show community. Players have been comparing their progress, counting missing Vouchers and deciding whether they should spend Stubs on cards before the Collection arrives. However, one important detail remains unresolved: the final reward has not been officially revealed in the publicly available information checked ahead of the release. Community speculation has focused on several possibilities, including Babe Ruth, but those predictions should not be treated as confirmed information.

MLB The Show 26 September 18 Collection Overview

Here is what players need to know ahead of the new Legends & Flashbacks Collection:

The current Legends & Flashbacks ecosystem is enormous. theSHOWBASE tracks 36 separate Legends & Flashbacks Collections with 106 reward milestones, covering everything from traditional Rookie, Veteran and All-Star cards to newer sets such as Pipeline, Summer, 2026 Draft and New Threads Trade Deadline. That scale helps explain why major Collections have become some of Diamond Dynasty's most significant long-term objectives.

How Legends & Flashbacks Collections Work

Unlike a simple Collection that asks players to lock in a fixed group of cards, the major Legends & Flashbacks Collections are built around numerous card Series.Players collect enough cards from individual Series to unlock Series Vouchers or other qualifying rewards. Those rewards can then become inputs for a larger Collection.

Some of the Series currently represented in MLB The Show 26 include:

• Rookie 

• Breakout 

• All-Star 

• Veteran 

• Awards 

• Postseason 

• Signature 

• Prime 

• 2nd Half Heroes 

• Spotlight 

• Topps Now 

• Milestone 

• Contributor 

• Jolt 

• Cornerstone 

• Hall of Fame 

• Finest 

• The Negro Leagues 

• World Baseball Classic 

• 2026 All-Star 

• 2026 Home Run Derby 

• 2026 Draft 

• New Threads Trade Deadline 

There are 36 Collection categories currently tracked, meaning players who have consistently earned and retained cards throughout MLB The Show 26 are in a much stronger position than someone trying to build a Collection from scratch. 

The Jolt Collection Gives Us an Important Clue

One of the clearest signs of another major Collection comes from the Jolt Series.

The current Jolt Collection contains 60 eligible cards and now has a fourth major milestone:

Collect 55 cards: 4th Legends and Flashback Jolt Series Voucher

That wording is significant because previous Jolt milestones correspond directly with the earlier Miguel Cabrera, Victor Martinez and Carlos Beltran Collections.

The progression currently looks like this:

All 60 Jolt cards in this Collection are listed as gameplay-earned rather than market cards, making this particular Voucher more dependent on progression than simply spending Stubs. The existence of a specifically named “4th Legends and Flashback” Voucher provides strong evidence of how MLB The Show 26 is preparing its next stage of the Collection system.

Previous Major Collection Rewards

Looking at the earlier Major Collections provides useful context for September 18.

Three major rewards are currently tracked:

99 OVR Miguel Cabrera

Miguel Cabrera was one of the first major Legends & Flashbacks targets. The current tracker lists his Milestone Major Collection as requiring 21 of 22 available inputs.

99 OVR Victor Martinez

The next major Collection increased the requirement. Victor Martinez's Awards Collection requires 24 of 26 available inputs.

99 OVR Carlos Beltran

Carlos Beltran represents another major step upward. His Hall of Fame Collection has 32 available inputs, with players needing 30 to earn his 99 OVR card. 

This progression demonstrates how San Diego Studio has gradually expanded the Collection requirements as more Diamond Dynasty content has entered the game.It also means that players preparing for the fourth Collection should not assume that completing only a handful of Series will be enough.

How Expensive Can These Collections Become?

The answer depends heavily on what a player already owns.For example, the Awards Collection currently requires 40 cards for the Carlos Beltran Awards Series Voucher. The tracker lists 56 eligible cards, including high-value players such as Ozzie Smith, Willie McGee, Geraldo Perdomo, Eddie Murray and Adrian Beltre. Milestone can also become expensive for players starting late. Its Carlos Beltran milestone requires 17 cards, while the eligible pool includes valuable cards such as Chili Davis, Pedro Martinez, Bryce Harper and Stan Musial. This creates an important distinction between two types of Diamond Dynasty players.A player who has consistently completed Programs, Events and other content may already own much of what is necessary. Someone who sold Collection cards throughout the year may face a considerably more expensive path.

What Should Players Do Before September 18?

Because the final requirements have not been fully confirmed in the sources checked ahead of launch, blindly purchasing expensive cards is risky.

A more practical preparation strategy is to review the entire binder.

Players can focus on:

1. Checking which Series Vouchers are already complete 

2. Identifying Collections that are only one or two cards away from completion 

3. Finishing gameplay-earned cards before purchasing expensive alternatives 

4. Reviewing Programs that still contain obtainable Legends or Flashbacks 

5. Avoiding unnecessary quick-selling of older cards 

6. Keeping some Stubs available for unexpected requirements 

7. Comparing market prices before locking expensive cards into Collections 

The key is Collection flexibility.If the fourth Collection follows the pattern established by Miguel Cabrera, Victor Martinez and Carlos Beltran, players may have some flexibility in which qualifying inputs they use. Carlos Beltran, for example, requires 30 inputs while 32 are currently available. That makes it unnecessary to assume every single Series must be completed.

Is Babe Ruth the September 18 Reward?

Babe Ruth is one of the most interesting names currently circulating in community discussion, but players should understand where that information comes from.In Episode 307 of The Show: The Podcast, the host discussed preparations for the September 18 Collection and predicted that Babe Ruth could be the reward. The reasoning was based on the structure of previous rewards: Miguel Cabrera is a right-handed hitter, while Victor Martinez and Carlos Beltran are switch hitters, making a powerful left-handed hitter such as Ruth an interesting possibility. But the host explicitly presented Babe Ruth as a guess.Therefore, it would be inaccurate to say that Babe Ruth has been officially confirmed as the Collection reward.Until San Diego Studio or the live Diamond Dynasty Collection screen confirms the player, the safest description is simply the fourth major Legends & Flashbacks Collection reward.

Why the September 18 Collection Matters?

The real importance of a major Collection extends beyond one reward card.Collections give older Diamond Dynasty content renewed relevance. A card that no longer makes a competitive lineup can suddenly become valuable because it helps complete an Awards, Milestone, Rookie, Spotlight or another Series requirement.The current Legends & Flashbacks directory includes Collections tied to numerous parts of MLB The Show 26's content cycle, including the World Baseball Classic, Jackie Robinson Day, Summer, Home Run Derby, Draft and Trade Deadline. That makes the September 18 Collection effectively a test of how much content a player has accumulated throughout the year.It may also influence the Community Marketplace. If a newly required Series contains scarce cards, demand can increase quickly as players race to complete the necessary Voucher.

September 18 Is Bigger Than One Collection

The Legends & Flashbacks Collection is also expected to be part of a broader September 18 Diamond Dynasty content drop.Recent coverage points toward additional Programs, Mini Seasons and Diamond Quest content alongside a new Event Program and the Legends & Flashbacks Collection. That gives players more than just another expensive Collection to pursue. New gameplay content may provide additional cards and rewards that could help with long-term Collection progress.For that reason, spending heavily before checking the new Programs may not always be the best approach.

Final Thoughts

The September 18 Legends & Flashbacks Collection is shaping up to be one of MLB The Show 26's more important late-season Diamond Dynasty additions. The existing system already contains three major 99 OVR rewards in Miguel Cabrera, Victor Martinez and Carlos Beltran, while the Jolt Collection now explicitly includes a 4th Legends and Flashback Jolt Series Voucher at 55 collected cards. For players looking to prepare for upcoming Diamond Dynasty content and keep their in-game resources ready, Cheap MLB The Show 26 Top Up options on Z2U can provide a convenient way to get ready for the latest activities. What remains unknown is arguably the most exciting part: the identity of the new final reward and its complete Voucher requirements.Babe Ruth is a popular community prediction, but it remains speculation rather than confirmed information. Until the Collection is fully revealed, players are better served by preparing their binders, completing obtainable Series cards and preserving enough Stubs to react once the exact requirements become clear.For longtime Diamond Dynasty players, September 18 could turn months of card collecting into one of the biggest rewards of the MLB The Show 26 season.