Tom Brady owns the only Fernando Mendoza "My 1st NFL Auto" card that exists. What he paid for it is the one detail nobody involved will attach a number to. Chris Costa, co-founder and managing partner at CardVault by Tom Brady, told the New York Post on Friday that the card cost Brady "a life-altering amount of money for most people, if not all people." That sentence is the entire public accounting of the price. No figure was disclosed.

How the Deal Came Together

The pursuit started in the spring, when Topps revealed that members of the 2026 draft class were signing cards inscribed "My 1st NFL Auto" after learning where they were headed, Costa told the Post. Mendoza went first overall to the Las Vegas Raiders — a team Brady partly owns.

"Tom basically raised his hand and was like, 'I want that card,'" Costa said. "'I need that card.'"

Locating it was its own project. Costa said it took several weeks for the card's owner to come forward, and described him only as a resident of the Southwest United States. Once found, the back-and-forth ran "several weeks, if not close to a month." The deal that closed it was "a hefty cash number" plus an autographed jersey, with a meetup between Brady and the seller at a future CardVault location still being arranged.

It got done days before Fanatics Fest opened in mid-July, and Brady took the card on stage there:

"I got Fernando Mendoza's 'My 1st NFL Auto' one-of-one. I know how hard he works. He's got a great family and he's coming to a great environment for success. So I figured you've got to invest in it, and it's going to hopefully bring some good luck to Las Vegas."

The card now sits in what Costa called a safe place.

The Record Claim, and Who Is Making It

Costa also told the Post the price made this "the most expensive Fernando Mendoza card that's ever sold." That claim is narrower than it first sounds. It is a record for the cards of one rookie quarterback — not for a one-of-one, not for a modern rookie autograph, not for anything wider. It also comes from Brady's own business partner rather than from an auction house, a marketplace, or a published sale.

Analysis: The public Mendoza market does have numbers, and they belong to a different kind of card. Sports Illustrated reported that on release day for 2026 Topps Flagship Football, Mendoza's Topps Flagship First Signature Blue Ink sold for $1,700, with other copies going as low as $1,300. Those are on-card rookie autographs that exist in quantity — the blue ink is the base version, with gold limited to 50 copies and red to five. A single inscribed one-of-one is a different object with no comparable sale behind it, which is precisely why deals like this one get made privately and reported without a figure. Nothing in the reporting establishes where the price landed, and the blog is not going to guess at it.

The Timing

The purchase itself is roughly a month old. It became public on Friday, two days after 2026 Topps Flagship Football reached shelves on August 21 — the product Mendoza is on the cover of, which this blog previewed in CASE #0214. Brady's card-shop chain has been busy in its own right: CASE #0247 covered the investor group that bought into CardVault this month, and CASE #0009 covered its Austin opening.

Analysis: The structure here is unusual enough to name plainly. A part-owner of the team that drafted Mendoza first overall bought the rarest card of that same player, said on stage that "you've got to invest in it," and runs a retail card business that stands to benefit from attention on him. None of that is an accusation of anything — no rule is alleged to have been broken, and no source raises one. It is simply a set of roles converging on a single piece of cardboard, and it is worth noticing when the buyer's business partner is also the one certifying the record.

Verdict: the most interesting thing about the most expensive Mendoza card ever sold is that its price is the only part of the story nobody will state.

Confidence note: Costa's quotes, the timeline, the terms (cash plus an autographed jersey), Brady's Fanatics Fest remarks and the undisclosed price are reported by the New York Post (Edward Lewis, August 21, 2026). Release-day sale prices for 2026 Topps Flagship Football, including the $1,700 Mendoza First Signature Blue Ink and the gold and red print runs, are reported by Sports Illustrated (Brendan Darr, August 22, 2026). Passages marked Analysis are this blog's interpretation, not findings in either source.