Coach Kyle Shanahan said Mostert underwent surgery Friday to address a fractured right forearm and will be placed on injured reserve, Cam Inman of The San Jose Mercury News reports.

It was fully expected that Mostert would require a season-ending procedure after he sustained the injury in Thursday's 34-3 win over the Raiders, putting a damper on another effective showing on the ground (seven carries for 86 yards and a touchdown). Mostert will wrap up the campaign with an exceptional 7.7 yards per carry average on 34 totes, production that could earn him a good deal of interest when he becomes an unrestricted free agent in March. As for the 49ers' plans this season sans Mostert, Alfred Morris is now on track to see an expanded role as the clear top complement to starter Matt Breida. Expect the 49ers to add another running back to the roster in the near future, too, though that player's main role could come on special teams rather than offense.

More News
Our Latest Stories
  • josh-allen-7-1400.jpg

    Sleepers 1.0

    Jamey Eisenberg gives you his Sleepers 1.0 for 2019, which includes guys like Josh Allen, Jimmy...

  • ben-roethlisberger.jpg

    Busts 1.0

    Jamey Eisenberg gives you his Busts 1.0 for 2019, which includes mainstays Patrick Mahomes,...

  • juju-smith-schuster-steelers.jpg

    AFC Fantasy news and notes

    In Part 2 of our Fantasy notebook from the NFL's annual league meetings in Phoenix, Jamey Eisenberg...