The $518,000 sale of the ball used in the now-unretired Tom Brady's "final" touchdown pass has been voided by an agreement between buyer, consigner and auction house.

Brady decided to return to play just 40 days after he first announced his retirement in late January -- and less than 24 hours after the auction closed, no less -- no money was exchanged, so the agreement was simply nullified, according to a source.

"We wanted to do the right thing here," said Mike Heffner, president and partner at Lelands Auctions, adding that while the original buyer has pulled out, the ball's consigner still plans to sell it privately through Lelands.