Matthews dislocated his left shoulder in the first quarter of South Carolina's 31-13 loss at Tennessee last week. Spurrier had said earlier that Matthews would not play this week at Arkansas.
Matthews, a junior who started all nine games this season, is tied for fourth on the team with 39 tackles, which leads all defensive linemen.
He'll be replaced in the starting lineup by freshman Devin Taylor.

http://accesswdun.com/article/2009/11/224518