by Andrew Healy (KC-NE) and Scott Kacsmar (PIT-DEN)
It certainly seems like the NFL has never seen a year with as many injuries as 2015, and in particular, a year with as many important injuries to important players. And those injuries have defined the AFC playoff race much more than the playoff race in the NFC. Only two of the six AFC playoff teams started the same quarterback in all 16 games this season, but Kansas City and New England made up for it with plenty of injuries to stars at other positions. We don't know if Denver is making the right decision by going back to Peyton Manning at quarterback, in part because we don't know how healthy Manning truly is, and we don't know how much Ben Roethlisberger's shoulder injury will shut down the Pittsburgh passing game even if he plays.