The fifth-year center left Friday morning's practice on the back of a cart following a pileup during a blocking drill.
Seahawks coach Jim Mora says Spencer hurt his left ankle and that the severity of the injury would be determined later, but "it doesn't appear to be anything serious."
Wide receiver Deion Branch missed the morning practice with swelling in his reconstructed knee, but he returned for the night session at Washington's Husky Stadium. The former Super Bowl MVP has had two surgeries on the knee in the past 15 months.
Copyright 2009 by The Associated Press