49ers to sign veteran RB Alfred Morris, Kyle Shanahan says

The San Francisco 49ers are to sign veteran running back Alfred Morris, pending a physical, according to head coach Kyle Shanahan. Morris reinforces a backfield that has been hit by injuries, with Matt Breida suffering a separated shoulder in the preseason clash with the Dallas Cowboys last Thursday and presumed starter Jerick McKinnon sustaining a strained calf in Sunday's practice. Morris previously worked with Shanahan when the 49ers coach was offensive coordinator for the Washington Redskins.