Walter Thurmond facing four-game suspension

Violated substance-abuse policy. Aaron Wilson

Print This November 24, 2013, 01:02 PM EST

Seahawks cornerback Walter Thurmond will be suspended for four games for violating the NFL's substance-abuse policy, according to

The suspension is expected to begin this week.

Thurmond has filled in for injured cornerback Brandon Browner and has 31 tackles this season.

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Aaron Wilson covers the Ravens for The Baltimore Sun.

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