Injuries are as much of a part of football as touchdowns and turnovers.
Each and every year, some of the game's top stars are bitten by the injury bug, putting an early end to their season.
Most recently, Robert Griffin III suffered a horrific knee injury in the playoffs against the Seattle Seahawks. He has a long road ahead of him if he wants to be ready for the season opener.
With some help from Bleacher Report injury expert Will Carroll, let's take a look at the recovery timetables for 10 injured NFL stars.