A spokesperson for Lelands, which bills itself as “the first sports memorabilia and card auction house in the world,” confirmed over the weekend that the authenticated ball Brady threw to Mike Evans in the fourth quarter of the Jan. 23 NFC title game had sold for $518,628. The month-long winter online auction that included the ball formally closed Saturday night. Less than 24 hours later, Brady announced he was returning for a 23rd season. Though the identities of the buyer and seller remain anonymous, the dilemma has stoked natural curiosity over whether the auction house will let the buyer off...