Super Bowl XXXVIII Champions: New England Patriots (2004)

In 2001, the New England Patriots won Super Bowl XXXVI in the biggest Super Bowl upset in more than thirty years. When the 2003 season began with their prized free-agent acquisition of the summer injured for the year, the release of their defensive captain, and a humbling 31-0 loss to division rival Buffalo Bills, no one believed a second championship was possible. Except for the Patriots.