Tim Heitman-USA TODAY Sports

Dallas Cowboys linebacker Sean Lee left his team's Week 4 matchup against the New Orleans Saints after suffering a concussion.

Continue for updates.

Lee Active for Week 5

Sunday, Oct. 11

The Cowboys did not list Lee among the inactive players against the New England Patriots.

Latest on Lee's Practice Status Ahead of Week 5

Friday, Oct. 9

The Cowboys announced Lee was a full participant in practice after being a limited participant on Thursday.

Lee Critical for Rush Defense

The 29-year-old is a key member of the defense, particularly against the run.

It would be a stretch to say the Cowboys need Lee in order to make the postseason. They finished 12-4 and nearly advanced to the NFC Championship Game without him last year. However, Lee's presence on the field gives the Cowboys a consistent tackling presence vs. the run game and a smart player overall.