In 2011, the most impressive fantasy football players have no doubt been the quarterbacks.
With running backs like Jamaal Charles going down to injury, this is not surprising.
This week, however, there are many matchups that favor the defenses.
Here are the five quarterbacks that you should sit this week.
Philip Rivers has been one of the most disappointing fantasy football players this year.
With one of his top targets, Antonio Gates, questionable for the Week 7 game against the New York Jets, Rivers is a risky start.
The Jets have the fifth-best offense in the league, and Rivers will have a tough time beating it, especially when the Jets have such a poor run defense.
The Chargers will go with a heavily run-dominated offense, not giving Rivers many looks.
Starting Rivers this week would be a mistake given his previous performances and the Chargers game plan.
There has been a lot of hype surrounding Tim Tebow this week. Most of it is unwarranted.
Tim Tebow is still very inexperienced and has not proven himself. His top offensive target was just traded as well.
Miami has a very weak passing defense. While this could be beneficial to Tebow, he is rusty. The risk of starting a young quarterback like Tebow is high, especially when the team will be focusing on the pass.
The Dolphins run defense is in the top 50 percent meaning Tebow may have a hard time running as well.
Overall, Tim Tebow is a risky start and one that is probably not worth it.
Sam Bradford has been one of the most disappointing players of the 2011 season.
This week the Rams are playing the Dallas Cowboys who have the fourth-best passing defense in the league, and it's not going to be pretty.
Not to mention Bradford suffered a high ankle sprain and is questionable to play this week. If he does, the quality of play may not be very high.
While the Rams just added wide receiver Brandon Lloyd, he won't make that big of an impact this week.
Bradford is a must-sit for Week 7.
This week the Jets are playing the San Diego Chargers, who happen to have a very good defense.
As we all know, the Jets offense hasn't been playing as they were expected too. They have the No. 23-ranked passing offense.
That ranking won't go up against the Chargers who have the sixth-rated pass defense.
Mark Sanchez has thrown five interceptions this season and has been carrying the offense as the running game has been nonexistent.
The Jets will be relying on the pass and the Chargers know this. Look for a lot of blitzes and packages designed to confuse Sanchez.
Starting Sanchez this week would spell doom for any fantasy football owner.
This week Cam Newton will try to make a comeback after the mistakes from last week. He won't succeed.
Three interceptions and zero touchdowns is hard to come back from. Not to mention, the Washington Redskins have the No. 3 defense in the league.
The Panthers will have a tough time overcoming that.
The Panthers-Redskins game will be a low-scoring shootout. The key will be controlling the clock. This means running the ball and fewer passes for Cam Newton.
While Newton is the No. 2-ranked quarterback in fantasy football, starting him against the Redskins would be unwise.