Tom Brady says he may not still be playing if the Patriots had beat the Giants in Super Bowl XLII : r/nfl
Giants leave Brady dazed and confused - ESPN
Tom Brady Would Trade Two Of His Super Bowl Rings For Undefeated Season With Patriots In 2008 - CBS Boston
Tom Brady remains haunted by Giants' Super Bowl upset
Oral history of Patriots players who never won a ring with Brady-Belichick - Sports Illustrated
Eli Manning retires: Tom Brady congratulates the Giants quarterback who beat him in two Super Bowls
The Super Bowl 52 Super Bag - The Ringer
Eli Manning on Tom Brady Saying He'd Trade 2 Super Bowls for 19-0 Season: 'Never', News, Scores, Highlights, Stats, and Rumors
Tom Brady Would Trade 2 Super Bowl Rings for Perfect 2007 Season
Tom Brady Says He'd Give up 2 Super Bowl Rings to Have Beaten Giants