Seattle vs. Philadelphia

After a rough start, the Seattle Seahawks are rolling and in control of their own destiny as they try to make their march back to the Super Bowl.

In their past two games they've beaten an Arizona team that had the NFL's best record by a score of 19-3, and just four days later on the road they smothered San Francisco, a top NFC team and divisional foe, by the same score. Despite losing players from last year's title team, injuries, and the Percy Harvin debacle, Pete Carroll has kept his locker room positive, focused and moving forward with his WinForever philosophy. You have to give him credit. When most teams would have fractured, his was fortified.

If the Seahawks win their last four games, they will win the NFC West and have another shot at a Super Bowl.

If they can pull that off, it will be because they're looking more like last year's Super Bowl champs. They're healthier on defense as both safety Kam Chancellor and linebacker Bobby Wagner have returned to bolster the Legion of Boom and ground defense. Seattle's defense is again ranked No. 1 in the league, allowing only 285.8 yards per game, which isn't far off their league-best 273.6 in 2013. Their offense is picking up steam at the right time, too, due in large part to their run game, which now leads the NFL with 168.6 yards per game, and is led by Marshawn Lynch, who has rushed for more than 100 yards in three of the past four games.

Let's take a look at three key matchups in Sunday's game between the Seahawks and Eagles that will play a key role in determining whether or not Seattle is able to continue building momentum while making a run at repeating as Super Bowl champs.