The Steelers signed Shampklin to their practice squad Wednesday, Alan Saunders of SteelersNow.com reports.
The Steelers waived Shampklin on Monday, Brooke Pryor of ESPN.com reports.
Shampklin (coach's decision) is inactive for Sunday Night Football against the Jets.
Shampklin rushed once for minus-2 yards in Sunday's 32-13 win over the Raiders.
Shampklin rushed four times for 14 yards during Sunday's 20-17 loss to Dallas.
Shampklin was promoted to the 53-man roster from the Steelers' practice squad Wednesday.
The Steelers elevated Shampklin to their active roster Saturday, Alan Saunders of SteelersNow.com reports.
Shampklin signed with the Steelers' practice squad Wednesday.
The Steelers waived Shampklin on Tuesday, Teresa Varley of the team's official site reports.
Shampklin failed to make it through to the the Chargers' 53-man roster and was waived Tuesday.