Seattle inks defensive tackle Terrill to contract extension

Four-year veteran defensive tackle Craig Terrill, a key component in the Seattle Seahawks' four-player interior rotation, has signed a three-year contract that will keep him off the unrestricted free agent market.

The deal, which runs through the 2010 season, is worth about $5 million. It includes base salaries of $900,000 (for 2008), $1.15 million (2009) and $1.15 million (2010).

Without the extension, Terrill would have been eligible for unrestricted free agency in the spring.

A sixth-round choice in the 2004 draft, Terrill enjoyed the most productive season of his career in 2007, appearing in all 16 games and registering 25 tackles. The Seattle coaches use a four-man rotation at tackle and Terrill, 27, is one of the quartet's best defenders against the run.

Seattle ranked 12th in the league this season in defense versus the run.

A former Purdue standout, Terrill, who battled through injuries early in his NFL career, has played in 47 games, and has 61 tackles, five sacks and three passes defensed.

Len Pasquarelli is a senior writer for ESPN.com.