NFL Predictions: Top 5 Biggest Upsets in Week 4

Picking games and gauging the skill of a team can be a tough job. Predicting how teams match-up and what underrated team might surprise everyone with a huge win over a team believed to be a lock is oftentimes a shot in the dark.

However, this week there are several teams that some have written off that I believe will come up big and pull of unexpected upsets.

Check them out!

Detroit Lions @ Dallas Cowboys: Line Dallas by 1

The Detroit Lions are undefeated and they are the underdogs against a wavering Dallas Cowboys team, which blew their prime time season opener against the New York Jets. 

The Cowboys followed up their down-to-the-wire Sunday night game with an overtime victory against the San Francisco 49ers. They won game three against NFC East rival, the Washington Redskins, in another close one.

As of yet, none of these teams have appeared particularly formidable. However, in Week 4 they face their most difficult foe of the year thus far, the Detroit Lions. 

The Lions are built around their ferocious DT Ndamukong Suh. Suh lights a fire under his teammates like no other Lion has in many years. Dallas quarterback Tony Romo will have to have his head on a swivel as Suh will be coming after him every play.

Facing one of the best defenses in the league the Cowboys will falter and the Lions will remain unbeaten in Week 4.

Tennessee Titans @ Cleveland Browns: Line Cleveland by 1

The Tennessee Titans face a pesky Cleveland Browns team in Week 4.

The Browns have gotten it done from effective quarterback play by Colt McCoy and stout defense. Peyton Hillis has yet to show the power and quickness he demonstrated last season.

For the Titans, they suffered a huge blow losing wide receiver Kenny Britt to a knee injury against the Denver Broncos last week. Chris Johnson has also yet to get it going in the run game after holding out and signing a huge deal this offseason.

The key for the Titans has been veteran quarterback Matt Hasselbeck. He has done enough to propel the Titans to victory and has come up big when they needed him the most. After a slow start losing to Jacksonville on opening day, they have bounced back with wins over the Baltimore Ravens and the Broncos.

Hasselbeck will continue to hold together the patchwork Titans and lead them to a win over the mediocre Browns in Week 4.

Kansas City Chiefs vs. Minnesota Vikings: Line Minnesota by 2

Really?! This is Luck Bowl 1.0 as the first pair of winless teams meet in Week 4.

The Chiefs have fallen apart since losing key pieces to their team watching several top stars go down with season-ending injuries, including: RB Jamaal Charles, SS Eric Berry, LB Brandon Siler, TE Tony Moeaki, among others.

Despite the losses, the Chiefs remained competitive against their divisional rivals, the San Diego Chargers last week. The Chiefs defense came up with two interceptions and kept Pro Bowl quarterback, Philip Rivers in check all game.

The Vikings however, found another way to lose late against the Detroit Lions last week. It was the third straight time this season where the Vikings found themselves ahead at halftime only to squander the lead and lose in the closing seconds.

The Vikings struggles will continue in Week 4 as the Chiefs pick up their first victory this season at Arrowhead Stadium.

San Francisco 49ers @ Philadelphia Eagles: Line Even

Ok, so this isn't "technically" an upset game. The line is even with the uncertainty of Michael Vick for the Eagles. By now you probably heard that Vick is "100 percent" and ready for the game against the Niners this week.

I'm not buying it.

He might be able to go, but I am not sure he will finish this game.

Believe it or not, the San Francisco 49ers although they have gone under the radar, haven't had as much talk as the Eagles, they have been consistent and have been able to find a way to win. 

The reason I would call this an upset is because nobody is giving the Niners a chance in this game. 

Jim Harbaugh has a group of overachieving players that a lot of other teams wouldn't have kept around who are playing as a team and at a high level. I think they are going to surprise us in Week 4 and surprise the Eagles.

Frank Gore is going to run all over the gaping hole in the middle of the Eagles defense.

New England Patriots @ Oakland Raiders: Line New England by 5

Last week was an eye opener for the New England Patriots. Most people expect that after the loss to the Bills the Patriots will come out against the Oakland Raiders with a fiery vengeance.

It may be the case that they come out looking for blood, however, the Oakland Raiders playing in the Black Hole will be up to the task. They are not a team to back down from a fight, and I don't think the Patriots will be able to hang in a game that figures to be very physical.

Darren McFadden has played better than every other running back this season. He will carve up the soft Patriots defense and continue to make Jason Campbell's job very easy.

Tom Brady will struggle against the physical front of the Raiders and will likely continue to make poor decisions with the ball.

As bad as the heartbreak that Red Sox Nation suffered Wednesday, Sunday's loss to Oakland will sting just as bad. Boston sports has instantly taken a turn South this fall.