On Sunday, Brett Favre plays like ... well, Brett Favre ... and the Jets beat the Dolphins.

One day later, the Patriots find out All-Pro quarterback Tom Brady will be lost for the season because of a knee injury and lifetime backup Matt Cassel must now try to lead a team many predicted to reach the Super Bowl before the season began to the playoffs.

Heading into Sunday's Pats-Jets game, the Patriots were a near double-digit favorite. Now the Jets are favored by a field goal in many polls.

What a difference one week makes.