When I was preparing my fantasy football team for Week 4, I was pleasantly surprised to discover the Arizona Cardinals' defense available in free agency.
The Cardinals are still available in many leagues. If you have the opportunity to get them for no cost in your league, jump on it now. They are the best defense to have this week.
This Sunday, the Cardinals (3-0) play host to the Miami Dolphins (1-2), owners of arguably the worst offense in the NFL. Rookie quarterback Ryan Tannehill has no good targets at wide receiver and cannot handle pressure very well yet.
Veteran offensive tackle Jake Long is still nursing an injury as well and has played poorly so far this year. There is almost nothing positive that can be said for the Dolphins' offense at this point in the season.
Quality Cardinals Defense
The Cardinals' defense is a legitimately good unit. They have been ranked at a 17.6 so far this year at Pro Football Focus, with their entire front seven having good years. For comparison, the San Francisco 49ers' defense—another top unit—has graded out at only 9.6.
If the Cardinals are available, grab them now before the opportunity is past. They are the best defense to have for fantasy—bar none—for this week and likely more to come.