Seattle Seahawks offensive tackle Russell Okung worked with the trainers during pre-game workouts today, but apparently could not convince them he was healthy enough to play.

So Okung will not be active for today’s game because of a bone bruise on his left knee, which means Frank Omiyale will get his first career start at left tackle for the Seahawks.

Tight end Zach Miller, Seattle’s other player listed as questionable for today’s game, is active and will play. And rookie Winston Guy, part of Seattle’s big nickel package, will be inactive today. And rookie defensive end Greg Scruggs, who missed last week’s game with a hamstring injury, is active today.

For Dallas, defensive tackle Jay Ratliff is out with a high-ankle sprain. And starting center Phil Costa (back) also will not play today. Ryan Cook will start at center for Dallas in his place. Here’s the full list.

Seattle
WR Charly Martin
RB Kregg Lumpkin
DB Winston Guy
CB Jeremy Lane
OL James Carpenter
DL Jaye Howard
OL Russell Okung

Dallas
WR Cole Beasley
WR Andre Holmes
CB Mario Butler
S Matt Johnson
LB Kyle Wilber
C Phil Costa
NT Jay Ratliff