Steelers to sign CB Kam Alexander

The Steelers are adding some depth to their defense.

Pittsburgh is signing cornerback Kam Alexander, according to ESPN's Adam Schefter.

Alexander went undrafted this spring out of Oregon. After spending time in rookie minicamp with the Seahawks and Falcons, he did sign with Seattle in late July.

But the Seahawks let him go last week when they signed linebacker Alphonzo Tuputala.