... free agency, whatever it may be. Injuries, trades and free agency can effect any player, but what happens when it is one of those elite players that gets injured or traded? As 2008 has showed us with Tom Brady's season ending injury, no matter how good or experienced you are, you are not invincible. Donovan McNabb, Brandon Marshall, Anquan Boldin and Julius Peppers showed us that no matter how much you do, you can still be kicked off the team. But sometimes there are some players that you cannot replace. When they are gone, your team will suffer, and can potentially kill your season. This is a list of the Top 10 Most Irreplaceable Players in the NFL today.

Bleacher Report - NFL