The upside: Even the worst defeats tend to feature a bright spot or two.
Leon Washington had an 83-yard kickoff return and a 52-yard punt return. Those plays set up scoring drives producing 10 points.
Cornerback Richard Sherman picked off a pass. That play set up a field goal.
Seattle held Arizona to 253 yards and 4.4 per play.
The Seahawks held a 7-minute advantage in time of possession.
The defense held Cardinals quarterback John Skelton to one completion on seven attempts in the third quarter.
The Seahawks limited record-setting return specialist Patrick Peterson to a 9.3-yard average on four punt returns, with a long return covering 17 yards.
Looking ahead: The Seahawks are home against Dallas in Week 2.