Breakdown of special teams units

A snapshot look at the players on the Patriots' 45-man game-day roster who were part of core special teams units Sunday against the Ravens:

WR Sam Aiken

LB Eric Alexander

S Pat Chung

LB Rob Ninkovich

Safeties Matthew Slater, Brandon McGowan and James Sanders were part of three special teams units.

The Patriots have been inconsistent on special teams, with some of the more noticeable struggles coming on kickoff returns. Slater, who was part of the kickoff coverage, punt coverage and punt return teams, could provide a spark to a kickoff return unit that has annually been one of the NFL's better groups.