ASHNBURN, Va. (AP) Redskins rookie linebacker Martrell Spaight is heading to the season-ending injured reserve list.

The move allows the Redskins to reinstate cornerback Chris Culliver to the active roster ahead of Thursday's game against the Giants.

Spaight, a fifth-round draft pick out of Arkansas, sustained a concussion in Washington's season-opening loss against the Miami Dolphins.

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Coach Jay Gruden said he believed the team was doing ''the right thing'' for Spaight's recovery by placing him on IR.

Culliver was suspended for Washington's Week 2 victory over the Rams for a violation of the NFL's personal conduct policy.

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