MLB The Show 26 September 11 Attribute Update Predictions | 5 Players Who Could Earn Major Upgrades
September 4 Roster Update for MLB The Show 26 was very small in scale, with no changes to the positions of Gold or Diamond players. The official team may have shifted its focus to September 11 Attribute Update.
Attribute Update adjusts player attributes based on their actual performances during the real MLB season. Players who perform well will receive attribute boosts, and their OVR may increase from Gold to Diamond. Conversely, players who struggle may face downgrades.
For Diamond Dynasty players, Attribute Update can have an even greater impact because it affects the value and market fluctuations of Live Series cards. The official team will use player performances through September 8 as a reference for the attribute adjustments, so let's predict which players could see their attributes and ratings increase.

91 OVR Pete Crow-Armstrong
Pete Crow-Armstrong already went from 89 OVR to 91 OVR in August 14 Roster Update, so another overall increase seems unlikely. However, the official team may still adjust his individual attributes.
On September 3, Crow-Armstrong was named National League Player of the Month for August, earning the honor for the second time this season. He led all of MLB in August home runs, slugging percentage, extra-base hits, total bases, and runs scored. His 14 home runs also helped Cubs set a National League record with 62 home runs in a single month.
Pete Crow-Armstrong was outstanding throughout August and exceeded the expectations many fans had for him. The official team may increase his Power and Contact attributes. His defensive attributes are already excellent, but those two offensive ratings remain relatively low.
78 OVR Jac Caglianone
Jac Caglianone was also one of the players upgraded in August 14 Roster Update, when his OVR increased from 74 to 78, moving him from a Bronze card to a Silver card. However, there is little doubt that he still has room for another upgrade.
Over a 14-day stretch in mid-to-late August, he hit an outstanding .415, while his batting average over his last 30 games stood at .411 with 6 home runs and 26 RBIs. He completely moved past the ankle injury that affected him in mid-August and firmly established himself as Royals' starting right fielder.
Caglianone's season numbers improved significantly in August, helping him earn American League Player of the Month award.
The official team is highly likely to upgrade him from Silver to Gold, and his overall rating could rise to 82 OVR or even 83 OVR. If you want to earn some MLB The Show 26 stubs, investing in Caglianone could be a very safe decision.
78 OVR Sal Stewart
Sal Stewart posted his best single-month performance of the season in August, hitting .304 with 8 home runs, 21 runs scored, and 35 hits in 29 games. Every one of those numbers was a new monthly high for him this season.
By the beginning of September, his home runs, RBIs, hits, and several other offensive numbers had already led all rookies, and his overall production ranked among the best in MLB.
He could also move from Silver to Gold, although the increase probably would not be very large. The official team may raise his OVR by only one point. However, based on his August performance, his Power, Clutch, and Contact attributes could all receive increases.

72 OVR Tristan Peters
Tristan Peters' overall rating dropped by one point in August 14 update, but he actually began to regain his form throughout August.
His home runs, slugging percentage, and OPS all ranked first among American League rookies. Even more impressively, he homered in five consecutive games from August 22 through August 26, tying a White Sox franchise record and becoming 14th rookie in MLB history to hit a home run in five straight games.
Tristan Peters did not show any obvious signs of slowing down in early September. He continued to perform steadily against Twins on September 7, so the official team could potentially raise him to 74 or even 75 OVR.
72 OVR Coby Mayo
Coby Mayo has performed far better in the second half of the 2026 season than he did in the first half. His numbers over 41 games since All-Star break have significantly surpassed his production before the break.
In August, he appeared in 25 games and recorded 5 home runs, three doubles, two triples, 15 RBIs, and 15 runs scored.
He carried that hot form into early September, hitting the first two-homer game of his career against Cleveland. In particular, Mayo has already become one of the most dangerous hitters in MLB against left-handed pitching.
In MLB The Show 26, he is already a Bronze hitter specifically suited for facing left-handed pitchers. Although this card could receive an overall increase, its current rating is so low that even an investment may not generate much in the way of stubs.
There were many rookies and lower-rated players who were exceptionally hot throughout August. The good news is that they are highly likely to receive upgrades, while the bad news is that even if you invest in them, the number of stubs you can earn may be relatively small. If you want more stable investment options, the players listed above are worth watching.
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