A Cooper Flagg Auto Numbered to 5 Just Came Out of Topps Definitive Basketball
One of the rarest Flagg autographs in the 2025-26 Topps Definitive Basketball set has already surfaced from a pack.
What Happened
2025-26 Topps Definitive Basketball hit the market by September 17, 2026, and a Cooper Flagg autograph parallel numbered to just 5 copies has been pulled from a pack. The set also includes a Flagg, Ace Bailey, and Knueppel triple autograph card, making it one of the more loaded rookie-era releases in the product's run.
Why Collectors Should Care
Definitive is Topps' ultra-premium basketball tier, and a Flagg auto at /5 is about as scarce as it gets for a card that actually came out of a pack. With Flagg entering his first full NBA season as one of the most-watched rookies in years, a five-copy parallel surfaces at exactly the moment collector attention on him is highest. The triple auto with Flagg, Harper, and Knueppel adds another layer for anyone tracking the 2025 draft class as a group.
Questions Collectors Are Asking
How rare is the Cooper Flagg autograph parallel in 2025-26 Topps Definitive Basketball?
The parallel pulled from a pack is numbered to just 5 copies, making it one of the rarest Flagg autographs in the entire product.
Who else is featured in the Flagg triple autograph card in Topps Definitive Basketball?
The triple autograph card pairs Cooper Flagg with Dylan Harper and Ace Knueppel, covering three of the most prominent names from the 2025 NBA draft class.
Track this in the app
Track 2025-26 Topps Definitive Basketball pulls and market moves in the Collector Nation app.
Get the Collector Nation App