20 most important NFL free agent signings ever


21. The best of the best free agent moves

Free agency in the NFL is far more important and prominent in the modern game than it was during the league’s formative years.

It often happens that teams overpay for what they get on the open market, but there have been several huge acquisitions that are impossible to ignore.

Here is a look at the 20 most important NFL free-agent signings of all-time.