Ogbonnia is slated to sign a one-year, $3 million deal with the Cowboys, Mike Garafolo of NFL Network reports.
Ogbonnia played nine regular-season games with the Chargers last season, logging double-digit defensive snaps in just seven of those contests. The 25-year-old will likely fill the role of rotational nose tackle or defensive end behind starters Quinnen Williams, Kenny Clark and Osa Odighizuwa.