There is always some risk involved in NFL free agency.
Whether it is an injured player looking to get back to the top of his game (Greg Jennings) or a player loaded with potential having off-field issues (Desmond Bryant), NFL teams need to tread with caution in free agency. However, if a wild-card free agent actually pans out, the payoff could be huge.
While players are most commonly seen as wild cards, franchises also have the potential of being wild cards. It's perennially difficult to predict what the New England Patriots will do in free agency, and it's similarly tough to do so for other teams that have a wealth of cap space.
Today we'll take a look at the biggest wild cards of NFL free agency, discussing both teams and players.