Hall signed with the Seahawks' practice squad Monday.
Hall was waived by the Vikings on Thursday, as they opted to go with Brett Rypien as their No. 3 option at quarterback instead. The BYU product will now fill that void for Seattle, as the team only had starter Geno Smith and backup Sam Howell at the position between its active roster and practice squad before today. Hall appeared in three contests for Minnesota last season, completing 13 of his 20 pass attempts for 168 yards and an interception, while also losing two fumbles.