The Seahawks have placed Koback on on the reserve/retired list.
Koback signed with the Seahawks' practice squad Tuesday, John Boyle of the team's official website reports.
The Eagles cut Koback from the practice squad Monday.
Koback signed with the Eagles' practice squad Wednesday.
Seattle cut Koback from its practice squad Monday, John Boyle of the Seahawks' official site reports.
Seattle waived Koback on Wednesday, John Boyle of the Seahawks' official site reports.
Koback signed with the Seahawks on Wednesday, John Boyle of the team's official site reports.
Koback was signed by the Vikings as an undrafted free agent Saturday,