Shenault was elevated from the Chargers' practice squad to their active roster ahead of Sunday's matchup against the Buccaneers, Kris Rhim of ESPN.com reports.
The Chargers claimed Shenault off waivers Thursday.
The Seahawks waived Shenault on Monday, John Boyle of the team's official site reports.
Shenault (back) is inactive for Sunday's matchup against Arizona.
Shenault (back) is questionable for Sunday's game against the Cardinals, Michael-Shawn Dugar of The Athletic reports.
Shenault is doubtful to return to Sunday's Week 11 game against San Francisco due to an oblique injury.
Shenault (back) was a full participant in Thursday's practice, John Boyle of the Seahawks' official site reports.
Shenault (back) didn't practice Wednesday, Curtis Crabtree of Fox 13 Seattle reports.
Shenault returned a kickoff 97 yards for a touchdown in Thursday's 36-24 loss to the 49ers. He finished with 189 return yards.
Shenault (foot) is active Sunday against the Dolphins.