Seahawks sign LB Alphonzo Tuputala, waive CB Kam Alexander

Seattle has made a pair of moves on defense.

The Seahawks have signed linebacker Alphonzo Tuputala and waived cornerback Kam Alexander.

Tuputala is an undrafted rookie out of Washington. He previously participated in Seattle’s rookie minicamp on a tryout basis.

Alexander, also an undrafted rookie, had signed with the Seahawks last month.