Officials say the item could potentially become the most valuable game-worn jersey EVER ... passing Joe Montana’s San Francisco 49ers uni he wore in Super Bowl XIX and Super Bowl XXIII, which came with a $1.2 million price tag earlier this year.
Sotheby’s Head of Streetwear & Modern Collectables Brahm Wachter spoke about the rare piece of memorabilia ... saying, "There are only a few athletes who are universally accepted as the greatest in their sport -- Michael Jordan, Tiger Woods, Muhammed Ali, Wayne Gretzky, Babe Ruth."
"For the National Football League, it’s Tom Brady. Worn at the very last game of his tenured career, this historic shirt is a tangible reminder of Brady’s unparalleled legacy, and as such, is arguably the most coveted NFL jersey to ever come to auction."
Brady's jersey isn't the only highlight of the event -- F1 superstar Lewis Hamilton's Mercedes-Benz from his 2013 season (his first with the team) will also go up for auction ... and could sell for up to $15 MILLION.