Whenever NFL free agency rolls around, the nation obsesses over where the biggest names will land.
Last season, the nation was captivated by the Peyton Manning sweepstakes, and it'll be enthralled as teams pursue the likes of Greg Jennings, Dwayne Bowe, Mike Wallace and Dominique Rodgers-Cromartie this March.
While landing a star can boost a team, it's the under-the-radar signings that often elevate a team to the next level. Think BenJarvus Green-Ellis to the Bengals, Pierre Garcon to the Redskins and Ben Grubbs to the Saints. These signings didn't draw many headlines last year, but these three players delivered huge boosts to their respective teams.
Which free agents currently flying below the radar will be difference-makers in 2013?
Here's a preview.