NFL free agency is finally open for business, and with a number of teams well positioned under the 2012 salary cap—confirmed at $120.6 million—we could be in line for one of the most active spending sprees in recent history.
With so many column inches devoted to the movements of Peyton Manning and the abundance of available talent at wide receiver, it's time for a defensive perspective.
Mario Williams is the unquestioned marquee name of free agency, but there are plenty more players worthy of the attention of defense-needy general managers.
Leaving out franchises with a boatload of draft picks, or serious cap issues—which means St. Louis Rams, Washington Redskins, Oakland Raiders and Pittsburgh Steelers fans will have to look elsewhere for their free agency fix—let's take a look at the top candidates for a defensive facelift over the coming days.
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