According to Matt Maiocco of CSN Bay Area (@maioccocsn), San Francisco 49ers tackle Anthony Davis has been ruled out of Sunday's game against the Seattle Seahawks.

Davis suffered his concussion during the second-to-last snap in the 49ers' week 11 16-10 win over the New York Giants.

Davis' absence means Jonathan Martin will start in his place at right tackle.

Also ruled out for Sunday is wide receiver Stevie Johnson (knee), linebacker Navorro Bowman (knee), and defensive tackle Glenn Dorsey (forearm).