Patriots having Pot Roast for lunch, visiting with Terrance Knighton

The Patriots were sniffing around Nick Fairley a bit, and when he signed with the Saints, they moved quickly to line up an option. According to Ian Rapoport of the NFL Network, the Patriots are bringing in Washington defensive tackle Terrance Knighton for a visit today. Knighton is a different type of big man than Fairley,…