SEATTLE --—Sixth-overall draft choice Russell Okung left the Seahawks' second preseason game with an ankle injury.
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Seattle's left tackle to replace retired All-Pro Walter Jones limped off and into the locker room following his team's opening drive against Green Bay on Saturday night.
The team announced his return was doubtful. Seattle's starters were expecting to play through the first half.
Mansfield Wrotto, normally a guard, replaced him. Seattle is already without backup tackle Ray Willis for an indefinite time because he is facing knee surgery.
The Seahawks gave Okung a six-year contract earlier this month that guarantees him more than $29 million and has a maximum value of $58 million.