The Buffalo Bills have confirmed that they've reached agreement with defensive tackle Kyle Williams on a contract extension. The team does not disclose financial parameters of such agreements, but fear not: Adam Schefter has them, and as expected, they are significant.

Per Schefter, Williams gets a six-year, $39 million deal that will guarantee him a cool $17 million.

This represents a significant raise for Williams, a sixth-year player out of LSU that earned his first Pro Bowl invite in 2010 (albeit as an alternate). Williams signed a rookie deal in 2006, when he was a fifth-round pick of the Bills, and then got his first contract extension in 2008.

The extension also represents a commitment on behalf of the team to running a hybrid defensive system that won't be a true 3-4 or 4-3. Williams is ideal for this front, as his versatility is a tremendous asset, and the Bills can continue finding similarly versatile players to build around him in the years to come.

With Williams tied up for the foreseeable future, the next target for the Bills to re-sign will be fourth-year wideout Stevie Johnson.