The Facts: Allen agreed in principle Friday to a four-year extension worth more than $11 million per season, sources said. The deal ensures that both he and quarterback Philip Rivers will be under team control through at least the 2019 season. Allen's contract runs through 2020.

Diehards Line: Allen burst onto the scene with a 1,046-yard season as a rookie. Last year Allen was off to an outstanding start, catching 67 passes for 725 yards in less than half a season before suffering a season-ending kidney laceration in Week Eight. As Profootballtalk.com suggests, if Allen can play that well this season and stay healthy for 16 games, he’ll be worth every penny.