Quarterback Trevone Boykin, running back Mike Davis, receiver Cyril Grayson, center Joey Hunt, receiver David Moore, defensive tackle Garrison Smith, tight end Tyrone Swoopes and cornerback Mike Tyson were all added to the practice squad after being waived as part of Saturday's roster cuts. Boykin and Hunt both spent all of last season on Seattle's roster, whole, Tyson (sixth round) and Moore (seventh round) were 2017 draft picks. Grayson and Swoopes both signed with Seattle this year as undrafted free agents who were something of developmental projects—Grayson because he was a track standout at LSU who hadn't played football since high school, and Swoopes because he was a quarterback at Texas who was making the switch to tight end in his first NFL camp. Both Davis and Smith have regular-season experience under their belts, Davis playing 14 games with the San Francisco 49ers over the past two seasons, and Smith playing three with Seattle last year.