Thomas (ankle) practiced in full Friday, Gregg Bell of Sports Radio 93.3 KJR Seattle reports.
Thomas missed Seattle's past two games and opened this week with a limited practice session. However, his ability to return to full participation Friday suggests the linebacker should be able to return to game action Monday versus Chicago. Thomas has started each of the five games in which he's appeared this season and has 20 tackles, including 1.0 sacks, one interception and one forced fumble.