Robert Griffin III knows all too well about injuries to quarterbacks.
Griffin's career trajectory -- from No. 2 overall pick to being out of football a year to being a backup with the Ravens -- was essentially scripted by injuries. So he can relate and empathize with players such as the Pittsburgh Steelers' Ben Roethlisberger, who is out for the season with an elbow injury, or the New Orleans Saints' Drew Brees, out for an extended period with an injured throwing hand, or the Jacksonville Jaguars' Nick Foles, out with a broken clavicle.
And even before all those injuries, which took place during the first two weeks of the season, Indianapolis Colts quarterback Andrew Luck -- the only player taken before Griffin in the 2012 draft -- abruptly retired, citing the toll of accumulated injuries.
