SANTA CLARA The 49ers on Wednesday signed one of their own free agents, pass rusher Cassius Marsh, to a two-year contract.
Marsh, 25, was a late-season addition to the team after the New England Patriots waived him in November. The 49ers immediately inserted him into the lineup and he was a key contributor at the "Leo" defensive end position and on special teams.
From Week 12 onward, only Dekoda Watson played more special teams than Marsh, 131 snaps to 117. Marsh, however, also was on the field for 189 defensive snaps in that span versus two for Watson.