Kon Knueppel NBA Debut Patch Autograph Card Sells for Record $2.34 Million
Kon Knueppel has joined Cooper Flagg and Dylan Harper in the multimillion-dollar club after his one-of-one NBA Debut Patch Autograph sold for $2.34 million at Fanatics Collect. The 2025 Topps Chrome Update card sold September 25 in Fanatics Collect’s Premier Auction after 62 bids, with the $2.34 million final price including the buyer’s premium. Fanatics Collect says the result sets a record for the most expensive Kon Knueppel card ever sold and marks the seventh NBA card sale to surpass $2 million in 2026.
Knueppel’s card received a PSA Gem Mint 10 grade, while his on-card autograph also earned a 10. The one-of-one contains the full NBA Debut Logoman patch from the jersey he wore during his first regular-season NBA game on October 22, 2025 against the Brooklyn Nets. The patch was worn only for that debut before being removed from the jersey and ultimately placed into the Topps Chrome Update card. Fanatics Collect says the reverse carries CGC authentication with a hologram that can be traced through a QR code.
The card also captures the beginning of what became a standout rookie season for Knueppel. Selected fourth overall in the 2025 NBA Draft, he went on to set the rookie three-point record and finished second to Cooper Flagg in Rookie of the Year voting, according to the Fanatics Collect listing. That combination of a one-of-one debut patch, an on-card autograph and a dual PSA 10 grade helped make the card one of the major lots in the September Premier Auction.
Knueppel’s $2.34 million result was the third huge NBA Debut Patch sale from the auction. As CollectiblesNews.com reported, Cooper Flagg’s one-of-one NBA Debut Patch Autograph sold for $8.04 million after 83 bids. The sale set a record for a Flagg card and, according to Fanatics Collect, became the third-most expensive NBA card ever sold.
Dylan Harper followed with another seven-figure result. His one-of-one NBA Debut Patch Autograph sold for $2.88 million, establishing a new record for a Harper card and becoming the sixth NBA card to sell for more than $2 million in 2026. Harper’s card was graded PSA 9 with a 10 autograph.
With Knueppel’s sale added to the total, the Flagg, Harper and Knueppel NBA Debut Patch Autographs generated a combined $13.26 million in the same Fanatics Collect auction. All three cards came from 2025 Topps Chrome Update and each carried the unique patch worn by the player during his first NBA regular-season game.
The three results also show how quickly the NBA Debut Patch concept has become one of the biggest chases in modern basketball cards. Unlike a more traditional rookie patch autograph using memorabilia that may not be tied to a specific game, these patches can be traced directly to the first regular-season appearance of each player’s NBA career. In Knueppel’s case, the patch inside the card was on his jersey the night he officially made his NBA debut.
Flagg’s $8.04 million sale understandably grabbed the biggest headline, but the Harper and Knueppel results show that demand extended well beyond the No. 1 pick. Harper reached $2.88 million, and Knueppel followed at $2.34 million, giving three members of the 2025 rookie class individual NBA Debut Patch cards worth more than $2 million.