Cornerback Richard Sherman was headed back to Seattle after a league hearing Friday, and he made it clear he planned on playing Sunday night against the 49ers.
Sherman missed the past two days of practice because of an appeals hearing regarding his positive test for a banned substance.
"Been a long day but very productive," he posted on his Twitter account Friday. "I will be out there with my teammates Sunday!"
Sherman faces a four-game suspension if his appeal is denied, but no decision is expected during the weekend.
Coach Pete Carroll conceded it wasn't ideal to have Sherman absent but wasn't worried it would leave ex-Stanford star unprepared to face the 49ers.
"He's as smart a football player as we have on our team," Carroll said.
Also, cornerbacks Walter Thurmond and Marcus Trufant practiced despite hamstring injuries.
Redskins: Quarterback Robert Griffin III is listed as probable for Sunday against Philadelphia. Or, as coach Mike Shanahan put it: "There is a very, very good chance he is going to play." Griffin (sprained knee) missed last week's win over Cleveland.
Jaguars: Running back Maurice Jones-Drew will miss his ninth straight
Giants: Ahmad Bradshaw (sprained knee) took part in practice on a limited basis, and coach Tom Coughlin said he was encouraged about having the running back for Sunday's game against Baltimore.
Bears: Linebacker Brian Urlacher (hamstring) will miss his third straight game when Chicago plays at Arizona on Sunday.
Bills: Buffalo agreed to sign a new 10-year lease with the state and county to continue playing at Ralph Wilson Stadium in Orchard Park, N.Y. It's a $271 million deal, of which $130 million will be committed to upgrading the aging stadium.
The Associated Press contributed to this report.