Tracy, Ingram or Micah.

If any of these guys makes the final roster then one of these three is likely to go:
Gerris
Kehl
Goff

By game four the Giants LBs might look like this:

SAM – Sintim, Tracy (Blackburn)
MIKE – Dillard, Blackburn
WILL – Boley, Kehl

(Gerris plays well and starts the season at MLB but gets hurt and goes on IR never to be seen again)

Goff and Gerris might BOTH be gone if they only keep six. Special teams play might mean adding a 7th LB but this could be a new look LB corp.