Matthews and DiMarco both played college football at South Carolina. Matthews was set to become an unrestricted free agent on March 10 while DiMarco was to be a restricted free agent.
New coach Dan Quinn, a defensive line guru, obviously saw something he liked in Matthews when watching the film. Matthews played strong late last season and also contributed on special teams. He played 110 defensive snaps and had seven tackles.
DiMarco, unfortunately, was recognized more for a key touchdown drop he had in the season finale against Carolina. He had been a reliable pass-catcher out of the backfield throughout the season. New offensive coordinator Kyle Shanahan might see the value in DiMarco as a blocker. Plus DiMarco is a solid special-teams contributor.
The 5-foot-8, 184-pound Williams was with the Washington Redskins in 2013 when Shanahan was the offensive coordinator there.