RENTON, Wash. (AP) The Seattle Seahawks may be without starting left tackle Russell Okung for Sunday's game against the Dallas Cowboys.

Okung injured his ankle in practice Thursday and was unable to practice Friday before the Seahawks traveled to Dallas. He was initially listed as doubtful on the team's injury report, but head coach Pete Carroll said Okung is questionable and will be a game-time decision.

''We'll see what happens with Russell,'' Carroll said. ''He caught his ankle yesterday in practice and got it rolled up a little bit.''

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Okung briefly left last week's game against the San Francisco 49ers due to a foot injury that forced him to miss two plays, but Carroll said this issue is unrelated. If Okung is unable to play, Alvin Bailey would likely get the start at left tackle.

Whoever starts at left tackle will have his hands full trying to block Cowboys defensive end Greg Hardy.

Wide receiver Paul Richardson had a strong week of practice after missing the first seven games while on the physically unable to perform list. Richardson suffered a torn ACL in January and was ineligible to practice for the first six weeks. The team held his return back until this week due to a short week of practice leading into last Thursday's game against San Francisco.

Carroll said they are still determining whether to activate Richardson in time for Sunday's game.

''He had a very good week,'' Carroll said. ''He looked good. He looked really fast.''

The team has until 1 p.m. PT on Saturday to add Richardson to the roster. They would need to release a player to clear a roster spot for Richardson.

The rest of Seattle's roster is healthy heading into Sunday's game. Running back Thomas Rawls' status seemed in doubt through most of the week due to a calf injury, but he turned a corner midweek and is ready to go.

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