Storylines for the NFL's 100th season: The Patriots' dynasty, the Chiefs' challenge, the Browns' hype, the Saints' gripe and the Bears' rise

After an offseason filled with stories you couldn't dream up - Robert Kraft's prostitution charge at a Florida massage parlor and Antonio Brown's frostbitten feet and great helmet showdown with the league - the NFL turns the attention where it likes it, back to the field with the Bears and Packers kicking off the 100th season Thursday at Soldier Field.

Storylines abound and none is greater than the Kraft's Patriots, who are once again defending a Super Bowl title as the greatest dynasty in league history rolls on. The Patriots have posted 18 consecutive winning seasons, won the AFC East