NFL Picks Week 4: 3 Underdog Picks Likely To Pull Off Upsets

After three weeks into the season, we are beginning to get a relatively good idea on which teams are contenders and which are pretenders.

Despite this, there are always underdogs that can pull off upsets every weekend.

Here are three underdogs who are likely to pull off upsets this weekend.

Pittsburgh Steelers (+3.5)

The Steelers started off the season with a difficult loss against the Baltimore Ravens.

Since that debacle, the team has started putting everything together and looked a little more consistent on Sundays.

They are still underdogs this weekend against an emerging Houston Texans team.

Houston lost a shootout last week against the New Orleans Saints. It's clear that this Houston team is for real.

This game will come down to the offensive line of Pittsburgh. If Roethlisberger has time in the pocket, the Steelers will be there at the end of the game.

Detroit Lions (+2.5)

Being the Detroit Lions automatically causes some doubts.

The Lions are off to a 3-0 start just a few years after going 0-16. They are one of three remaining undefeated teams.

Still, because they are Detroit they get little respect. That and the Cowboys typically get respect they don't deserve.

Dallas has been inconsistent and have played ugly football all season. They could be 3-0 right now, but they could just as easily be 0-3.

This is a statement game for Detroit. When they walk away this weekend, everyone will know they are a real playoff threat.

Arizona Cardinals (+1)

They aren't underdogs by much, but they are underdogs nonetheless.

The Cardinals have had some issues getting things going on offense in recent weeks. There are sparks of greatness, but there hasn't been any consistency.

The New York Giants are another team struggling with consistency. Last week they pulled off a victory against the Eagles only when Michael Vick left the game due to injury.

This should be a good battle and really is a toss up.

One or two big catches by Larry Fitzgerald against a depleted New York secondary may be all that Arizona needs to capitalize and pull off a win.