As noted by FOXSports.com's Adam Caplan, Kansas City Chiefs linebacker Andy Studebaker has signed a three-year contract extension.

A former undrafted free agent from Wheaton College, the 6-3, 248-pound Studebaker began his NFL career on the Philadelphia Eagles' practice squad. Signed to the Chiefs' active roster in 2008, Studebaker posted 31 tackles and a pair of interceptions in 22 games, including two starts, between 2008-09.

Studebaker was active for last night's season-opening win over the San Diego Chargers.

Exact terms of Studebaker's extension are unknown, but it includes at least $5.27 million in "new money". Studebaker's original $470,000 base salary for this season is now listed in NFLPA records at $1.305 million. Studebaker will earn $950,000 in base salary in 2011, $1.48 million in 2012, and $2.005 million in 2013.