In need of additional depth on the interior of the defensive line, the San Francisco 49ers landed defensive tackle Sebastian Joseph-Day on Tuesday.

According to a team source, Joseph-Day and the Niners agreed to terms on a one-year deal, with it expected to become official before San Francisco resumes practice Wednesday. The Los Angeles Chargers released Joseph-Day on Friday, a move that was somewhat surprising because he was a team captain who had started all 14 games with the team.