NFL championships are won on the field on Sundays every winter, but championship teams are built during the offseason.
That means free agency, which isn't the preferred team-building method by many NFL general managers, becomes a very helpful tool for some teams around the league.
Adding veteran players, some who have length injury histories, can be problematic for teams, though. They should always approach this time of the year with careful skepticism and do due diligence before taking the plunge on any player that comes with risk.
Let's take a look at some of these risky guys teams will talk to, and likely sign, this summer.