49ers DE Justin Smith has a partially torn left triceps, according to Matt Barrows of the Sacramento Bee.
Smith suffered the injury in Week 15 against the Patriots and did not play last Sunday against the Seahawks.
The Niners are hopeful Smith can play through the pain in the playoffs, as the injury likely requires surgery in the offseason, Barrows reports.
Ricky Jean Francois started for Smith and had six tackles, though the 49ers struggled to slow down Seattle’s attack. Smith was named to his fourth consecutive Pro Bowl this week.