Player Notes

DE Jacob Martin, seldom-used early in the season, has found his niche as a situational edge rusher for Seattle. In 12 snaps against the Vikings, he recorded two quarterback hits and a forced a key fumble on a sack against Kirk Cousins that cornerback Justin Coleman returned for a touchdown.

RG Jordan Simmons will likely earn his third start for the Seahawks because D.J. Fluker is still working his way back from a hamstring injury. Simmons impressed in his first two outings, holding his own against the likes of Rams defensive tackle Aaron Donald and Vikings defensive tackle Sheldon Richardson.

LT George Fant, a former college basketball standout at Western Kentucky, added a new wrinkle to the Seahawks aerial attack by catching his first career pass as an eligible receiver against Minnesota. He stumbled before he could get to the first-down marker, but it wouldn't be a surprise to see him targeted again before the season wraps up.

RB Rashaad Penny missed Wednesday's practice with a new knee injury, though head coach Pete Carroll doesn't sound overly concerned about his status for Sunday. If he somehow can't play, Mike Davis will see an increased workload behind starter Chris Carson.

SS Jaquiski Tartt (shoulder stinger) did not practice Wednesday when the 49ers began preparations for the Week 15 matchup with Seattle, an early indication he will have to miss a second consecutive game. Tartt aggravated a previous injury in the Week 13 loss at Seattle.

CB D.J. Reed Jr. (strained heel, bruised chest) played 65 of the 74 defensive snaps in the Week 14 win over Denver. He was replacing injured CB K'Waun Williams. Reed sat out the Week 13 loss to Seattle.

CB K'Waun Williams (strained knee) missed the Week 14 win over Denver. He was not able to practice Wednesday and thus is very questionable for the Week 15 matchup with Seattle.

OLB Mark Nzeocha (strained groin) had to leave the Week 14 win over Denver and is unlikely to play in Week 15 against Seattle.

DE Cassius Marsh (concussion) suffered the injury in the Week 14 win over Denver and has entered the league's protocol. He is unlikely to be cleared in time for the Week 15 game against Seattle.

G Joshua Garnett (thumb surgery) got on the field for four plays in the Week 14 win over Denver. He had missed the previous three games.