Tom Brady’s unretirement announcement may have cost one memorabilia collector over $500,000 after the NFL star said he is returning to the Tampa Bay Buccaneers for his 23rd NFL season. The last football used to throw a touchdown pass by Brady was auctioned off on March 12 by Lelands, which states it is “the first sports auction house and the premier appraisers and authenticators in the entire sports collectible hobby,” for $518,628. The ball—which Brady threw to wide receiver Mike Evans in the fourth quarter of the Jan. 23 NFC title game against the L.A. Rams—was billed as a “historic piece” by Lelands, which said a fan had caught it when Evans tossed it into the stands. The fan then consigned the ball to Lelands. “Obviously, with the game not yet decided, and Tom Brady having given no formal indication that he was retiring at the conclusion of the Buccaneers’ season, no one could have realized …