Edit: Rap Sheet says it's a 4 year deal.
Alex Marvez of Fox Sports reports that the Bills are expected to finalize a new contract with former Patriots pass rusher Mark Anderson. Anderson has been courted by numerous teams after a season with the Patriots revitalized his career.
Fellow Bills signee Mario Williams let it slip on Twitter earlier today that the contract negotiations with Anderson were "looking good." The Bills now have one of the scariest defensive fronts in the league. The line is expected to be Mario Williams, Kyle Williams, Marcell Dareus, and Mark Anderson.
Historically, the Patriots have struggled against teams with strong front four pass rushing attacks and it's clear the Bills are trying to take on the elite passing offenses in the league. Anderson bolsters the Bills defense and prevents the Patriots from re-signing one of their prior season's best pass rushing options.
The Patriots most likely did not value Anderson as highly as other teams valued him. He played under 50% of the snaps and his production sharply declined when he assumed a larger role in Chicago. He has been most productive in a sub-package role and the Patriots weren't willing to pay for him to play a full time position.
While it's tough to see Anderson go, especially to a division rival, the Patriots made the right business decision.