Editor’s note: Insider Matt Maiocco will be providing position-by-position breakdowns each day leading up to 49ers training camp, which opens with their first full-squad practice on Aug. 1.
Who they have: Arik Armstead, Darnell Dockett, Glenn Dorsey, Tank Carradine, Quinton Dial, Ian Williams, Tony Jerod-Eddie, Mike Purcell, Kaleb Ramsey, Garrison Smith, Lawrence Okoye
Who they lost: Justin Smith
Looking back: The 49ers used more of a rotation on the defensive line despite Dorsey’s biceps tear that kept him out for the entire season. Williams played in just nine games before sustaining a season-ending leg fracture.