Peyton Manning will be out two to three months with his second neck surgery of the offseason. There are reports that his back has been acting up, an injury that relates to the spinal column, which is a terrible sign.
Manning's career could quite possibly be over, seeing how neck injuries are widely considered the most dangerous in any sport. With that said, Manning's neck surgery wasn't the worst kind that could have taken place.
Tom Brady blew out his knee in the first quarter against the Chiefs in the 2008 season, leaving Bill Belichick and his coaching staff to pick up the pieces on the fly. There is no "Big Bang Theory" that applies to Peyton Manning's neck but rather a career of taking hits and hitting artificial turf.
Before getting to all the differences, there is one strong similarity: There is little preparation time for each of their replacements. Matt Cassel had the advantage over Kerry Collins of getting second team reps for the entire offseason, which Collins didn't have because of the lockout and he was set to retire.
The Colts' offense is just as complex as New England's and it will have to be simplified for Manning's mortal replacement. Here are the top four ways the injuries to the top two quarterbacks in the past ten seasons vary greatly to their respective teams.