Seahawks wide receiver Deion Branch didn't practice with the team Wednesday after injuring his hamstring in Monday's workout.
Branch's availability for Sunday's season opener against St. Louis is uncertain as teams don't have to indicate whether a player is out, doubtful, questionable or probable until Friday.
Branch played just eight games last year after coming back from knee surgery. He also missed five games in 2007.
On the upside, wide receiver T.j. Houshmandzadeh returned to practice for the first time in a week on Wednesday after sitting out with what coach Jim Mora had termed "general soreness."
Mora indicated prior to Wednesday's practice that neither receiver was seriously injured.
"They are fine," Mora said. "We'll see as they go through practice today. I believe that we are going to limit Deion a little bit today, but T.J.'s fine."