49ers vs. Lions: Previewing Week 16 for San Francisco

December 20, 2015; Santa Clara, CA, USA; San Francisco 49ers running back Shaun Draughn (24) warms up before the game against the Cincinnati Bengals at Levi’s Stadium. Mandatory Credit: Kyle Terada-USA TODAY Sports

Significant 49ers Injuries

Running back Shaun Draughn, who suffered a knee injury in Week 15, is doubtful for the contest. In response, the 49ers signed running back DuJuan Harris off the Baltimore Ravens practice squad in advance of the game.

That move leaves Harris and fellow RB Kendall Gaskins as the only healthy tailbacks on San Francisco’s roster. Rookie running back Mike Davis (hand) has resumed practicing, although he won’t be eligible for a return until Week 17.

Should the 49ers promote rookie back Jarryd Hayne from the practice squad?

Probably, but it will be interesting to see whether or not San Francisco makes such a move.

Offensive lineman Marcus Martin (concussion), linebacker Michael Wilhoite (ankle) and linebacker Aaron Lynch (concussion) are all listed as questionable heading into the game.

Lynch, the 49ers’ best pass-rusher with 6.5 sacks this season, was a full participant in practice this week per Matt Maiocco of CSN Bay Area.

Next: Jockeying for Better Draft Position