Core Four: Ihedigbo & White

FOXBOROUGH, Mass. -- When putting together a 46-man game-day roster, the importance of special teams can't be overlooked. If a backup at a position can contribute on fourth down, he has more value than a backup who doesn't factor into the special teams mix.

With this in mind, here is a look at the players who appeared on multiple special teams units Sunday against the Chargers:

Four units

S James Ihedigbo

LB Tracy White

Three units

CB Kyle Arrington

S Josh Barrett

S Sergio Brown

LB A.J. Edds

LB Dane Fletcher

WR Matthew Slater

Two units

S Patrick Chung

CB Devin McCourty

CB Antwan Molden

LB Rob Ninkovich